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#pragma once
#include "macroscopic.hpp"
#include "component.hpp"
#include "equilibrium.hpp"
#include "particle/particle.hpp"
#include <iostream>
namespace kel {
namespace lbm {
namespace cmpt {
struct HlbmReset {};
struct Hlbm {};
struct HlbmOneParticle {};
struct HlbmParticle {};
struct HlbmOneParticleMomentumExchange {};
}
template<typename T, typename Descriptor, typename Encode>
class component<T, Descriptor, cmpt::HlbmReset, Encode> final {
public:
component() = default;
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 {
auto& porosity_f = macros.template get<"porosity">();
auto& particle_N_f = field.template get<"particle_N">();
auto& particle_D_f = field.template get<"particle_D">();
auto& por = porosity_f.at(index);
por.at({}) = 1.0;
auto& pnf = particle_N_f.at(index);
pnf = {};
auto& pnd = particle_D_f.at(index);
pnd.at({}) = 0.0;
}
};
/**
* HLBM collision operator for LBM
*/
template<typename T, typename Desc, typename Encode>
class component<T, Desc, cmpt::Hlbm, Encode> final {
private:
typename saw::native_data_type<T>::type relaxation_;
saw::data<T> frequency_;
public:
component(typename saw::native_data_type<T>::type relaxation__):
relaxation_{relaxation__},
frequency_{typename saw::native_data_type<T>::type(1) / 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,Desc::D>> index, saw::data<sch::UInt64> time_step) const {
bool is_even = ((time_step.get() % 2) == 0);
auto& dfs_old_f = (is_even) ? field.template get<"dfs_old">() : field.template get<"dfs">();
auto& particle_N_f = field.template get<"particle_N">();
auto& particle_D_f = field.template get<"particle_D">();
auto& porosity_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,Desc::D>>& vel = vel_f.at(index);
compute_rho_u<T,Desc>(dfs_old_f.at(index), rho, vel);
auto& porosity = porosity_f.at(index);
saw::data<sch::Scalar<T>> one;
one.at({}) = 1.0;
auto flip_porosity = one - porosity;
auto& N = particle_N_f.at(index);
auto& D = particle_D_f.at(index);
// Convex combination of velocities
vel = vel * porosity + [&]() -> saw::data<sch::Vector<T,Desc::D>> {
return (D.at({}).get() > 0.0 ? N * flip_porosity / D : N);
}();
// Equilibrium
auto eq = equilibrium<T,Desc>(rho,vel);
for(uint64_t i = 0u; i < Desc::Q; ++i){
dfs_old_f.at(index).at({i}) = dfs_old_f.at(index).at({i}) + frequency_ * (eq.at(i) - dfs_old_f.at(index).at({i}));
}
}
};
template<typename T, typename Desc, typename Encode>
class component<T, Desc, cmpt::HlbmOneParticle, Encode> final {
private:
/*
template<typename CellFieldSchema, typename MacroFieldSchema, typename ParticleSchema, uint64_t i>
void apply_i(const saw::data<CellFieldSchema, Encode>& field, const saw::data<MacroFieldSchema,Encode>& macros, const saw::data<ParticleSchema,Encode>& part_groups, saw::data<sch::FixedArray<sch::UInt64,1u>> index, saw::data<sch::UInt64> time_step) const {
// if constexpr ( i < )
}
*/
public:
template<typename CellFieldSchema, typename MacroFieldSchema, typename ParticleSchema>
void apply(const saw::data<CellFieldSchema, Encode>& field, const saw::data<MacroFieldSchema,Encode>& macros, const saw::data<ParticleSchema,Encode>& part_group, saw::data<sch::FixedArray<sch::UInt64,1u>> index, saw::data<sch::UInt64> time_step) const {
/// Figure out how to access the particle list
// auto& p = particles.at(i);
/// Iterate over the grid bounds
// auto& grid = p.template get<"grid">();
using dfi = df_info<T,Desc>;
bool is_even = ((time_step.get() % 2) == 0);
auto& dfs_old_f = (is_even) ? field.template get<"dfs_old">() : field.template get<"dfs">();
auto& part_spheroid_group = part_group;
auto& mvel = macros.template get<"velocity">();
auto& mpor_f = macros.template get<"porosity">();
{
auto& parts = part_spheroid_group.template get<"particles">();
auto parts_size = parts.meta().at({0u});
auto& p_coll = part_spheroid_group.template get<"collision">().at({});
auto& p_rad = p_coll.template get<"radius">();
auto& pi = parts.at(index);
auto& pirb = pi.template get<"rigid_body">();
auto& pirb_pos = pirb.template get<"position">();
saw::data<sch::FixedArray<sch::UInt64,Desc::D>> start;
saw::data<sch::FixedArray<sch::UInt64,Desc::D>> stop;
auto eo_aabb = particle_aabb<typename ParticleSchema::ValueType>::calculate(part_spheroid_group,{{0u}},mvel.meta());
if(eo_aabb.is_error()){
return;
}
auto& aabb = eo_aabb.get_value();
/// Ok, I iterate over the space which covers our particle? So lower bounds to upper bounds
start = aabb.template get<"a">();
stop = aabb.template get<"b">();
saw::data<sch::Vector<T,Desc::D>> force_p;
iterator<Desc::D>::apply([&](const auto& index){
// ask for the d_k value here.
// For every value im iterating over I need sth
// std::cout<<"Pos: "<<index.at({0u}).get()<<" "<<index.at({1u}).get()<<std::endl;
auto& dfs = dfs_old_f.at(index);
saw::data<sch::Vector<T,Desc::D>> momentum;
for(uint64_t i = 0u; i < Desc::Q; ++i){
saw::data<sch::Vector<T,Desc::D>> e_i;
saw::data<sch::FixedArray<sch::UInt64,Desc::D>> n_ind_i;
for(uint64_t k{0u}; k < Desc::D; ++k){
e_i.at({{k}}) = (dfi::directions[i])[k];
n_ind_i.at({k}) = (dfi::directions[i])[k];
}
uint64_t i_opp = dfi::opposite_index[i];
saw::data<T> dfs_added = dfs.at({i}) - dfs_old_f.at(n_ind_i).at({i_opp});
saw::data<sch::Scalar<T>> dfs_added_v;
dfs_added_v.at({}) = dfs_added;
auto ei_dfs = e_i * dfs_added_v;
momentum = momentum + ei_dfs;
}
auto& mpor = mpor_f.at(index);
auto rel_dist = saw::math::vectorize_data(index).template cast_to<T>() - pirb_pos;
saw::data<sch::Scalar<T>> eps;
eps.at({}) = 1.5f;
mpor = particle_porosity<T,Desc::D,1u,por::ParticleSpheroid<T>>::calculate(rel_dist,p_rad,eps);
force_p = force_p + momentum * mpor;
},start,stop);
auto& pirb_acc = pirb.template get<"acceleration">();
pirb_acc = force_p;
saw::data<sch::Scalar<T>> ts;
ts.at({}) = 1u;
verlet_step_lambda<T,Desc::D,1u,coll::Spheroid<T>>(part_spheroid_group,{{{0u}}},ts);
// Check
}
}
};
template<typename T, typename Desc, typename Encode>
class component<T, Desc, cmpt::HlbmOneParticleMomentumExchange, Encode> final {
public:
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,Desc::D>> index, saw::data<sch::UInt64> time_step) const {
//
using dfi = df_info<T,Desc>;
bool is_even = ((time_step.get() % 2) == 0);
auto& dfs_old_f = (is_even) ? field.template get<"dfs_old">() : field.template get<"dfs">();
auto& dfs = dfs_old_f.at(index);
saw::data<sch::Vector<T,Desc::D>> momentum;
for(uint64_t i = 0u; i < Desc::Q; ++i){
saw::data<sch::Vector<T,Desc::D>> e_i;
saw::data<sch::FixedArray<sch::UInt64,Desc::D>> n_ind_i;
for(uint64_t k{0u}; k < Desc::D; ++k){
e_i.at({{k}}) = dfi::directions[i][k];
n_ind_i.at({k}) = (dfi::directions[i])[k];
}
uint64_t i_opp = dfi::opposite_index[i];
saw::data<T> dfs_added = dfs.at({i}) - dfs_old_f.at(n_ind_i).at({i_opp});
saw::data<sch::Scalar<T>> dfs_added_v;
dfs_added_v.at({}) = dfs_added;
auto ei_dfs = e_i * dfs_added_v;
momentum = momentum + ei_dfs;
}
auto& force_f = macros.template get<"force">();
// Set Force
force_f.at(index) = momentum * macros.template get<"porosity">().at(index);
}
};
}
}
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