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Random Ray Point Source Locator (#3360)
Co-authored-by: Paul Romano <paul.k.romano@gmail.com>
This commit is contained in:
John Tramm
GitHub
parent
b67771a3d0
commit
07f5334616
9 changed files with 435 additions and 33 deletions
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@ -1052,7 +1052,8 @@ random ray and Monte Carlo, however.
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regions. Thus, in the OpenMC implementation of random ray, particle sources
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are restricted to being volumetric and isotropic, although different energy
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spectrums are supported. Fixed sources can be applied to specific materials,
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cells, or universes.
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cells, or universes. Point sources are "smeared" to fill the volume of the
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source region that contains the point source coordinate.
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- **Inactive batches:** In Monte Carlo, use of a fixed source implies that all
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batches are active batches, as there is no longer a need to develop a fission
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@ -919,9 +919,12 @@ Monte Carlo solver.
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Currently, all of the following conditions must be met for the particle source
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to be valid in random ray mode:
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- One or more domain ids must be specified that indicate which cells, universes,
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or materials the source applies to. This implicitly limits the source type to
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being volumetric. This is specified via the ``domains`` constraint placed on the
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- Either a point source must be used, or a domain constraint must be specified
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that indicates which cells, universes, or materials the source applies to. In
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either case, this implicitly limits the source type to being volumetric, as
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even in the point source case the source will be "smeared" throughout the
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source region that contains the point source coordinate. A source domain is
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specified via the ``domains`` constraint placed on the
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:class:`openmc.IndependentSource` Python class.
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- The source must be isotropic (default for a source)
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- The source must use a discrete (i.e., multigroup) energy distribution. The
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@ -131,6 +131,12 @@ public:
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std::unordered_map<SourceRegionKey, int64_t, SourceRegionKey::HashFunctor>
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source_region_map_;
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// Map that relates a SourceRegionKey to the external source index. This map
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// is used to check if there are any point sources within a subdivided source
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// region at the time it is discovered.
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std::unordered_map<SourceRegionKey, int64_t, SourceRegionKey::HashFunctor>
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point_source_map_;
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// If transport corrected MGXS data is being used, there may be negative
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// in-group scattering cross sections that can result in instability in MOC
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// and random ray if used naively. This flag enables a stabilization
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@ -141,7 +147,7 @@ protected:
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//----------------------------------------------------------------------------
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// Methods
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void apply_external_source_to_source_region(
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Discrete* discrete, double strength_factor, int64_t sr);
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Discrete* discrete, double strength_factor, SourceRegionHandle& srh);
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void apply_external_source_to_cell_instances(int32_t i_cell,
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Discrete* discrete, double strength_factor, int target_material_id,
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const vector<int32_t>& instances);
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@ -946,17 +946,16 @@ void FlatSourceDomain::output_to_vtk() const
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}
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void FlatSourceDomain::apply_external_source_to_source_region(
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Discrete* discrete, double strength_factor, int64_t sr)
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Discrete* discrete, double strength_factor, SourceRegionHandle& srh)
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{
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source_regions_.external_source_present(sr) = 1;
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srh.external_source_present() = 1;
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const auto& discrete_energies = discrete->x();
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const auto& discrete_probs = discrete->prob();
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for (int i = 0; i < discrete_energies.size(); i++) {
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int g = data::mg.get_group_index(discrete_energies[i]);
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source_regions_.external_source(sr, g) +=
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discrete_probs[i] * strength_factor;
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srh.external_source(g) += discrete_probs[i] * strength_factor;
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}
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}
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@ -980,8 +979,9 @@ void FlatSourceDomain::apply_external_source_to_cell_instances(int32_t i_cell,
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if (target_material_id == C_NONE ||
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cell_material_id == target_material_id) {
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int64_t source_region = source_region_offsets_[i_cell] + j;
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apply_external_source_to_source_region(
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discrete, strength_factor, source_region);
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SourceRegionHandle srh =
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source_regions_.get_source_region_handle(source_region);
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apply_external_source_to_source_region(discrete, strength_factor, srh);
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}
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}
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}
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@ -1023,34 +1023,88 @@ void FlatSourceDomain::convert_external_sources()
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{
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// Loop over external sources
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for (int es = 0; es < model::external_sources.size(); es++) {
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// Extract source information
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Source* s = model::external_sources[es].get();
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IndependentSource* is = dynamic_cast<IndependentSource*>(s);
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Discrete* energy = dynamic_cast<Discrete*>(is->energy());
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const std::unordered_set<int32_t>& domain_ids = is->domain_ids();
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double strength_factor = is->strength();
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if (is->domain_type() == Source::DomainType::MATERIAL) {
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for (int32_t material_id : domain_ids) {
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for (int i_cell = 0; i_cell < model::cells.size(); i_cell++) {
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apply_external_source_to_cell_and_children(
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i_cell, energy, strength_factor, material_id);
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// If there is no domain constraint specified, then this must be a point
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// source. In this case, we need to find the source region that contains the
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// point source and apply or relate it to the external source.
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if (is->domain_ids().size() == 0) {
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// Extract the point source coordinate and find the base source region at
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// that point
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auto sp = dynamic_cast<SpatialPoint*>(is->space());
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GeometryState gs;
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gs.r() = sp->r();
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gs.r_last() = sp->r();
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gs.u() = {1.0, 0.0, 0.0};
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bool found = exhaustive_find_cell(gs);
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if (!found) {
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fatal_error(fmt::format("Could not find cell containing external "
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"point source at {}",
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sp->r()));
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}
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int i_cell = gs.lowest_coord().cell;
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int64_t sr = source_region_offsets_[i_cell] + gs.cell_instance();
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if (RandomRay::mesh_subdivision_enabled_) {
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// If mesh subdivision is enabled, we need to determine which subdivided
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// mesh bin the point source coordinate is in as well
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int mesh_idx = source_regions_.mesh(sr);
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int mesh_bin;
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if (mesh_idx == C_NONE) {
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mesh_bin = 0;
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} else {
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mesh_bin = model::meshes[mesh_idx]->get_bin(gs.r());
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}
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// With the source region and mesh bin known, we can use the
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// accompanying SourceRegionKey as a key into a map that stores the
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// corresponding external source index for the point source. Notably, we
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// do not actually apply the external source to any source regions here,
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// as if mesh subdivision is enabled, they haven't actually been
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// discovered & initilized yet. When discovered, they will read from the
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// point_source_map to determine if there are any point source terms
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// that should be applied.
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SourceRegionKey key {sr, mesh_bin};
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point_source_map_[key] = es;
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} else {
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// If we are not using mesh subdivision, we can apply the external
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// source directly to the source region as we do for volumetric domain
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// constraint sources.
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SourceRegionHandle srh = source_regions_.get_source_region_handle(sr);
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apply_external_source_to_source_region(energy, strength_factor, srh);
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}
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} else if (is->domain_type() == Source::DomainType::CELL) {
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for (int32_t cell_id : domain_ids) {
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int32_t i_cell = model::cell_map[cell_id];
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apply_external_source_to_cell_and_children(
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i_cell, energy, strength_factor, C_NONE);
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}
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} else if (is->domain_type() == Source::DomainType::UNIVERSE) {
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for (int32_t universe_id : domain_ids) {
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int32_t i_universe = model::universe_map[universe_id];
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Universe& universe = *model::universes[i_universe];
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for (int32_t i_cell : universe.cells_) {
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} else {
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// If not a point source, then use the volumetric domain constraints to
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// determine which source regions to apply the external source to.
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if (is->domain_type() == Source::DomainType::MATERIAL) {
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for (int32_t material_id : domain_ids) {
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for (int i_cell = 0; i_cell < model::cells.size(); i_cell++) {
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apply_external_source_to_cell_and_children(
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i_cell, energy, strength_factor, material_id);
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}
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}
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} else if (is->domain_type() == Source::DomainType::CELL) {
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for (int32_t cell_id : domain_ids) {
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int32_t i_cell = model::cell_map[cell_id];
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apply_external_source_to_cell_and_children(
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i_cell, energy, strength_factor, C_NONE);
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}
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} else if (is->domain_type() == Source::DomainType::UNIVERSE) {
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for (int32_t universe_id : domain_ids) {
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int32_t i_universe = model::universe_map[universe_id];
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Universe& universe = *model::universes[i_universe];
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for (int32_t i_cell : universe.cells_) {
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apply_external_source_to_cell_and_children(
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i_cell, energy, strength_factor, C_NONE);
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}
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}
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}
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}
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} // End loop over external sources
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@ -1399,6 +1453,25 @@ SourceRegionHandle FlatSourceDomain::get_subdivided_source_region_handle(
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sr_key, {base_source_regions_.get_source_region_handle(sr), sr});
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discovered_source_regions_.unlock(sr_key);
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SourceRegionHandle handle {*sr_ptr};
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// Check if the new source region contains a point source and apply it if so
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auto it2 = point_source_map_.find(sr_key);
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if (it2 != point_source_map_.end()) {
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int es = it2->second;
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auto s = model::external_sources[es].get();
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auto is = dynamic_cast<IndependentSource*>(s);
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auto energy = dynamic_cast<Discrete*>(is->energy());
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double strength_factor = is->strength();
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apply_external_source_to_source_region(energy, strength_factor, handle);
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int material = handle.material();
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if (material != MATERIAL_VOID) {
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for (int g = 0; g < negroups_; g++) {
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double sigma_t = sigma_t_[material * negroups_ + g];
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handle.external_source(g) /= sigma_t;
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}
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}
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}
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return handle;
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}
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@ -281,10 +281,21 @@ void validate_random_ray_inputs()
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"allowed in random ray mode.");
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}
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// Validate that a domain ID was specified
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if (is->domain_ids().size() == 0) {
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fatal_error("Fixed sources must be specified by domain "
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"id (cell, material, or universe) in random ray mode.");
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// Validate that a domain ID was specified OR that it is a point source
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auto sp = dynamic_cast<SpatialPoint*>(is->space());
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if (is->domain_ids().size() == 0 && !sp) {
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fatal_error("Fixed sources must be point source or spatially "
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"constrained by domain id (cell, material, or universe) in "
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"random ray mode.");
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} else if (is->domain_ids().size() > 0 && sp) {
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// If both a domain constraint and a non-default point source location
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// are specified, notify user that domain constraint takes precedence.
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if (sp->r().x == 0.0 && sp->r().y == 0.0 && sp->r().z == 0.0) {
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warning("Fixed source has both a domain constraint and a point "
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"type spatial distribution. The domain constraint takes "
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"precedence in random ray mode -- point source coordinate "
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"will be ignored.");
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}
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}
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// Check that a discrete energy distribution was used
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@ -393,12 +404,12 @@ RandomRaySimulation::RandomRaySimulation()
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void RandomRaySimulation::apply_fixed_sources_and_mesh_domains()
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{
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domain_->apply_meshes();
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if (settings::run_mode == RunMode::FIXED_SOURCE) {
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// Transfer external source user inputs onto random ray source regions
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domain_->convert_external_sources();
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domain_->count_external_source_regions();
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}
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domain_->apply_meshes();
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}
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void RandomRaySimulation::prepare_fixed_sources_adjoint(
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@ -517,6 +528,8 @@ void RandomRaySimulation::simulate()
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finalize_generation();
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finalize_batch();
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} // End random ray power iteration loop
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domain_->count_external_source_regions();
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}
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void RandomRaySimulation::output_simulation_results() const
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@ -0,0 +1,253 @@
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<?xml version='1.0' encoding='utf-8'?>
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<model>
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<materials>
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<cross_sections>mgxs.h5</cross_sections>
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<material id="1" name="source">
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<density units="macro" value="1.0"/>
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<macroscopic name="source"/>
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</material>
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<material id="2" name="void">
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<density units="macro" value="1.0"/>
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<macroscopic name="void"/>
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</material>
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<material id="3" name="absorber">
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<density units="macro" value="1.0"/>
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<macroscopic name="absorber"/>
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</material>
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</materials>
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<geometry>
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<cell id="1" material="1" name="infinite source region" universe="1"/>
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<cell id="2" material="2" name="infinite void region" universe="2"/>
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<cell id="3" material="3" name="infinite absorber region" universe="3"/>
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<cell fill="4" id="4" universe="5"/>
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<cell fill="5" id="5" name="full domain" region="1 -2 3 -4 5 -6" universe="6"/>
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<lattice id="4">
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<pitch>2.5 2.5 2.5</pitch>
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<dimension>12 12 12</dimension>
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<lower_left>0.0 0.0 0.0</lower_left>
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<universes>
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3 3 3 3 3 3 3 3 3 3 3 3
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3 3 3 3 3 3 3 3 3 3 3 3
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2 2 2 2 2 2 2 2 2 2 3 3
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2 2 2 2 2 2 2 2 2 2 3 3
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2 2 2 2 2 2 2 2 2 2 3 3
|
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2 2 2 2 2 2 2 2 2 2 3 3
|
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2 2 2 2 2 2 2 2 2 2 3 3
|
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2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
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1 1 2 2 2 2 2 2 2 2 3 3
|
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1 1 2 2 2 2 2 2 2 2 3 3
|
||||
|
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3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
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2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
1 1 2 2 2 2 2 2 2 2 3 3
|
||||
1 1 2 2 2 2 2 2 2 2 3 3
|
||||
|
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3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
2 2 2 2 2 2 2 2 2 2 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3
|
||||
3 3 3 3 3 3 3 3 3 3 3 3 </universes>
|
||||
</lattice>
|
||||
<surface boundary="reflective" coeffs="0.0" id="1" type="x-plane"/>
|
||||
<surface boundary="vacuum" coeffs="30.0" id="2" type="x-plane"/>
|
||||
<surface boundary="reflective" coeffs="0.0" id="3" type="y-plane"/>
|
||||
<surface boundary="vacuum" coeffs="30.0" id="4" type="y-plane"/>
|
||||
<surface boundary="reflective" coeffs="0.0" id="5" type="z-plane"/>
|
||||
<surface boundary="vacuum" coeffs="30.0" id="6" type="z-plane"/>
|
||||
</geometry>
|
||||
<settings>
|
||||
<run_mode>fixed source</run_mode>
|
||||
<particles>90</particles>
|
||||
<batches>30</batches>
|
||||
<inactive>15</inactive>
|
||||
<source particle="neutron" strength="3.14" type="independent">
|
||||
<space type="point">
|
||||
<parameters>2.5 2.5 2.5</parameters>
|
||||
</space>
|
||||
<energy type="discrete">
|
||||
<parameters>100.0 1.0</parameters>
|
||||
</energy>
|
||||
</source>
|
||||
<energy_mode>multi-group</energy_mode>
|
||||
<random_ray>
|
||||
<distance_active>500.0</distance_active>
|
||||
<distance_inactive>100.0</distance_inactive>
|
||||
<source particle="neutron" strength="1.0" type="independent">
|
||||
<space type="box">
|
||||
<parameters>0.0 0.0 0.0 30.0 30.0 30.0</parameters>
|
||||
</space>
|
||||
</source>
|
||||
<volume_normalized_flux_tallies>True</volume_normalized_flux_tallies>
|
||||
<source_region_meshes>
|
||||
<mesh id="1">
|
||||
<domain id="6" type="universe"/>
|
||||
</mesh>
|
||||
</source_region_meshes>
|
||||
</random_ray>
|
||||
<mesh id="1">
|
||||
<dimension>30 30 30</dimension>
|
||||
<lower_left>0.0 0.0 0.0</lower_left>
|
||||
<upper_right>30.0 30.0 30.0</upper_right>
|
||||
</mesh>
|
||||
</settings>
|
||||
<tallies>
|
||||
<filter id="3" type="material">
|
||||
<bins>1</bins>
|
||||
</filter>
|
||||
<filter id="2" type="material">
|
||||
<bins>2</bins>
|
||||
</filter>
|
||||
<filter id="1" type="material">
|
||||
<bins>3</bins>
|
||||
</filter>
|
||||
<tally id="3" name="Source Tally">
|
||||
<filters>3</filters>
|
||||
<scores>flux</scores>
|
||||
<estimator>tracklength</estimator>
|
||||
</tally>
|
||||
<tally id="2" name="Void Tally">
|
||||
<filters>2</filters>
|
||||
<scores>flux</scores>
|
||||
<estimator>tracklength</estimator>
|
||||
</tally>
|
||||
<tally id="1" name="Absorber Tally">
|
||||
<filters>1</filters>
|
||||
<scores>flux</scores>
|
||||
<estimator>tracklength</estimator>
|
||||
</tally>
|
||||
</tallies>
|
||||
</model>
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
tally 1:
|
||||
2.633900E+00
|
||||
2.948207E+00
|
||||
tally 2:
|
||||
1.440463E-01
|
||||
3.294032E-03
|
||||
tally 3:
|
||||
9.425207E-03
|
||||
1.089748E-05
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
import os
|
||||
|
||||
import openmc
|
||||
from openmc.examples import random_ray_three_region_cube
|
||||
|
||||
from tests.testing_harness import TolerantPyAPITestHarness
|
||||
|
||||
|
||||
class MGXSTestHarness(TolerantPyAPITestHarness):
|
||||
def _cleanup(self):
|
||||
super()._cleanup()
|
||||
f = 'mgxs.h5'
|
||||
if os.path.exists(f):
|
||||
os.remove(f)
|
||||
|
||||
|
||||
def test_random_ray_point_source_locator():
|
||||
model = random_ray_three_region_cube()
|
||||
|
||||
# Overlay subdivided SR mesh to reduce resolution from 2.5cm -> 1cm
|
||||
width = 30.0
|
||||
mesh = openmc.RegularMesh()
|
||||
mesh.dimension = (30, 30, 30)
|
||||
mesh.lower_left = (0.0, 0.0, 0.0)
|
||||
mesh.upper_right = (width, width, width)
|
||||
model.settings.random_ray['source_region_meshes'] = [
|
||||
(mesh, [model.geometry.root_universe]),
|
||||
]
|
||||
|
||||
# Define a point source
|
||||
strengths = [1.0]
|
||||
midpoints = [100.0]
|
||||
energy_distribution = openmc.stats.Discrete(x=midpoints, p=strengths)
|
||||
spatial_distribution = openmc.stats.Point([2.5, 2.5, 2.5])
|
||||
source = openmc.IndependentSource(
|
||||
energy=energy_distribution, space=spatial_distribution, strength=3.14)
|
||||
model.settings.source = [source]
|
||||
|
||||
# Settings
|
||||
model.settings.inactive = 15
|
||||
model.settings.batches = 30
|
||||
|
||||
harness = MGXSTestHarness('statepoint.30.h5', model)
|
||||
harness.main()
|
||||
Loading…
Add table
Add a link
Reference in a new issue