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-rw-r--r--c++/equilibrium.hpp49
1 files changed, 0 insertions, 49 deletions
diff --git a/c++/equilibrium.hpp b/c++/equilibrium.hpp
deleted file mode 100644
index bb55d00..0000000
--- a/c++/equilibrium.hpp
+++ /dev/null
@@ -1,49 +0,0 @@
-#pragma once
-
-#include "descriptor.hpp"
-
-namespace kel {
-namespace lbm {
-template<typename T, typename Descriptor>
-saw::data<sch::FixedArray<T, Descriptor::Q>> equilibrium(saw::data<T> rho, saw::data<sch::FixedArray<T,Descriptor::D>> vel){
- using dfi = df_info<T, Descriptor>;
-
- saw::data<sch::FixedArray<T,Descriptor::Q>> eq;
- // ^
- // 0.0
- // / \
- // | |
- //
- // Velocity * Velocity meaning || vel ||_2^2 or <vel,vel>_2
- saw::data<T> vel_vel{0.0};
- for(uint64_t j = 0u; j < Descriptor::D; ++j){
- vel_vel = vel_vel + vel.at(j) * vel.at(j);
- }
-
- /**
- * Calculate equilibrium
- */
- for(uint64_t i = 0u; i < eq.template get_dim_size<0u>(); ++i){
- saw::data<T> vel_c{};
- for(uint64_t j = 0u; j < Descriptor::D; ++j){
- // <vel,c_i>_2
- vel_c = vel_c + (vel.at(j) * saw::data<T>{static_cast<saw::native_data_type<T>::type>(dfi::directions[i][j])});
- }
-
- auto vel_c_cs2 = vel_c * saw::data<T>{dfi::inv_cs2};
-
- eq.at(i).set(
- dfi::weights[i] * rho.get() *
- (
- 1.0
- + vel_c_cs2.get()
- - dfi::inv_cs2 * 0.5 * vel_vel.get()
- + vel_c_cs2.get() * vel_c_cs2.get() * 0.5
- )
- );
- }
-
- return eq;
-}
-}
-}