diff options
author | Claudius "keldu" Holeksa <mail@keldu.de> | 2025-04-23 20:19:36 +0200 |
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committer | Claudius "keldu" Holeksa <mail@keldu.de> | 2025-04-23 20:19:36 +0200 |
commit | 1dc57770fe88b0564463d67a77a4c35f403c5d7f (patch) | |
tree | a00949038f86e9d300afa54731b6ab372dc38666 /examples | |
parent | f11181eafa66546da479cc47ee95231f0609c69d (diff) |
Working on mask generation of static solid particles
Diffstat (limited to 'examples')
-rw-r--r-- | examples/cavity_2d.cpp | 28 | ||||
-rw-r--r-- | examples/poiseulle_2d.cpp | 76 |
2 files changed, 76 insertions, 28 deletions
diff --git a/examples/cavity_2d.cpp b/examples/cavity_2d.cpp index 4df4f2b..d40e06e 100644 --- a/examples/cavity_2d.cpp +++ b/examples/cavity_2d.cpp @@ -49,34 +49,6 @@ using CavityFieldD2Q9 = CellField<D2Q9, CellStruct<D2Q9>>; } /** - * Unsure if feasible. I would have a rho normalization on the dfs and then I would use the const rho_computation - */ -template<typename Desc> -void compute_const_rho_u ( - saw::data<sch::DfCell<Desc>>& dfs, - const typename saw::native_data_type<sch::T>::type rho, - std::array<typename saw::native_data_type<sch::T>::type, 2>& vel - ) -{ - using dfi = df_info<sch::T, Desc>; - - saw::native_data_type<sch::T>::type real_rho = 0; - std::fill(vel.begin(), vel.end(), 0); - - for(size_t i = 0; i < Desc::Q; ++i){ - real_rho += dfs(i).get(); - vel[0] += dfi::directions[i][0] * dfs(i).get(); - vel[1] += dfi::directions[i][1] * dfs(i).get(); - } - for(size_t i = 0; i < Desc::Q; ++i){ - dfs(i).set(dfs(i).get() * (rho/real_rho)); - } - - vel[0] *= real_rho / (rho*rho); - vel[1] *= real_rho / (rho*rho); -} - -/** * Calculates the equilibrium for each direction */ template<typename Desc> diff --git a/examples/poiseulle_2d.cpp b/examples/poiseulle_2d.cpp index be3efbc..4ecf500 100644 --- a/examples/poiseulle_2d.cpp +++ b/examples/poiseulle_2d.cpp @@ -2,7 +2,83 @@ #include <forstio/codec/data.hpp> +namespace kel { +namespace lbm { +namespace sch { +using namespace saw::schema; + +/** + * Basic distribution function + * Base type + * D + * Q + * Scalar factor + * D factor + * Q factor + */ +using T = Float32; +using D2Q5 = Descriptor<2,5>; +using D2Q9 = Descriptor<2,9>; + +template<typename Desc> +using DfCell = Cell<T, Desc, 0, 0, 1>; + +template<typename Desc> +using CellInfo = Cell<UInt8, D2Q9, 1, 0, 0>; + +/** + * Basic type for simulation + */ +template<typename Desc> +using CellStruct = Struct< + Member<DfCell<Desc>, "dfs">, + Member<DfCell<Desc>, "dfs_old">, + Member<CellInfo<Desc>, "info"> +>; + + +using CavityFieldD2Q9 = CellField<D2Q9, CellStruct<D2Q9>>; +} +} +} + int main(int argc, char** argv){ + using namespace kel::lbm; + + std::string_view cfg_file_name = "config.json"; + if(argc > 1){ + cfg_file_name = argv[1]; + } + + auto eo_conf = load_lbm_config<sch::Float64,sch::Descriptor<2,9>>(cfg_file_name); + if(eo_conf.is_error()){ + auto& err = eo_conf.get_error(); + std::cerr<<"[Error]: "<<err.get_category(); + auto err_msg = err.get_message(); + if(!err_msg.empty()){ + std::cerr<<" - "<<err_msg; + } + std::cerr<<std::endl; + + return err.get_id(); + } + + auto& conf = eo_conf.get_value(); + + converter<sch::Float64> conv{ + {conf.template get<"delta_x">()}, + {conf.template get<"delta_t">()} + }; + + print_lbm_meta<sch::Float64,sch::Descriptor<2,9>>(conv, {conf.template get<"kinematic_viscosity">()}); + + + saw::data<sch::FixedArray<sch::UInt64,sch::D2Q9::D>> dim{{128, 128}}; + + saw::data<sch::CavityFieldD2Q9, saw::encode::Native> lattice{dim}; + + + return 0; } |