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| author | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-07-05 15:59:23 +0200 |
|---|---|---|
| committer | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-07-05 15:59:23 +0200 |
| commit | c0549d71b2109f10c1238db8b22362e7826ba61b (patch) | |
| tree | 16cd5264fcc3afe912e1b1b67738c8940d6d1177 /lib/core/c++/psm.hpp | |
| parent | 9a3147bc79caf3c0fb1a9cdee29d156b5ff092c7 (diff) | |
| download | libs-lbm-c0549d71b2109f10c1238db8b22362e7826ba61b.tar.gz | |
Just rename from lib to modules
Diffstat (limited to 'lib/core/c++/psm.hpp')
| -rw-r--r-- | lib/core/c++/psm.hpp | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/lib/core/c++/psm.hpp b/lib/core/c++/psm.hpp deleted file mode 100644 index 6dc146f..0000000 --- a/lib/core/c++/psm.hpp +++ /dev/null @@ -1,83 +0,0 @@ -#pragma once - -#include "macroscopic.hpp" -#include "component.hpp" -#include "equilibrium.hpp" - -namespace kel { -namespace lbm { -namespace cmpt { -struct PSM {}; -} - -/** - * PSM collision operator for LBM - */ -template<typename T, typename Descriptor, typename Encode> -class component<T, Descriptor, cmpt::PSM, Encode> { -private: - saw::data<T> relaxation_; - saw::data<T> frequency_; -public: - component( - typename saw::native_data_type<T>::type relaxation__ - ): - relaxation_{relaxation__} - { - saw::data<T> one; - one = 1.0; - frequency_ = one / relaxation_; - } - - template<typename CellFieldSchema, typename MacroFieldSchema> - void apply(const saw::data<CellFieldSchema, Encode>& field, const saw::data<MacroFieldSchema,Encode>& macros, saw::data<sch::FixedArray<sch::UInt64,Descriptor::D>> index, saw::data<sch::UInt64> time_step) const { - - using dfi = df_info<T,Descriptor>; - bool is_even = ((time_step.get() % 2) == 0); - - auto& dfs_old_f = (is_even) ? field.template get<"dfs_old">() : field.template get<"dfs">(); - auto& porous_f = macros.template get<"porosity">(); - - auto& rho_f = macros.template get<"density">(); - auto& vel_f = macros.template get<"velocity">(); - - saw::data<sch::Scalar<T>>& rho = rho_f.at(index); - saw::data<sch::Vector<T,Descriptor::D>>& vel = vel_f.at(index); - - compute_rho_u<T,Descriptor>(dfs_old_f.at(index),rho,vel); - - auto eq = equilibrium<T,Descriptor>(rho,vel); - - saw::data<T> one{1.0}; - auto& porous = porous_f.at(index); - auto flip_porous = one - porous.at({}); - - auto& dfs = dfs_old_f.at(index); - - auto dfs_cpy = dfs; - - for(uint64_t i = 0u; i < Descriptor::Q; ++i){ - uint64_t i_opp = dfi::opposite_index[i]; - dfs.at({i}) = dfs_cpy.at({i}) + frequency_ * (eq.at(i) - dfs_cpy.at({i})) * porous.at({}) + (dfs_cpy.at({i_opp}) - dfs_cpy.at({i}) ) * flip_porous; - } - - auto& force_f = macros.template get<"force">(); - auto& force = force_f.at(index); - for(uint64_t k{0u}; k < Descriptor::D; ++k){ - force.at({{k}}).set(0); - } - - for(uint64_t i{0u}; i < Descriptor::Q; ++i){ - uint64_t i_opp = dfi::opposite_index[i]; - auto dfs_diff = dfs.at({i}) - dfs.at({i_opp}); - for(uint64_t k{0u}; k < Descriptor::D; ++k){ - force.at({{k}}) = force.at({{k}}) + dfs_diff; - } - } - - force = force * porous; - } -}; - -} -} |
