From 002afda81a9569e2dfa268efb87d1ebd2e2c9ada Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Tue, 28 Oct 2025 16:02:46 +0100
Subject: Cleaning up examples

---
 examples/particle_ibm.cpp | 201 ----------------------------------------------
 1 file changed, 201 deletions(-)
 delete mode 100644 examples/particle_ibm.cpp

(limited to 'examples/particle_ibm.cpp')

diff --git a/examples/particle_ibm.cpp b/examples/particle_ibm.cpp
deleted file mode 100644
index d54dbdc..0000000
--- a/examples/particle_ibm.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-#include "../c++/descriptor.hpp"
-#include "../c++/equilibrium.hpp"
-
-#include <forstio/codec/data.hpp>
-
-#include <iostream>
-
-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">,
-	Member<UInt8, "geometry">,
-	Member<UInt32, "particle">
->;
-
-template<typename T, uint64_t D>
-using MacroStruct = Struct<
-	Member<FixedArray<T,D>, "velocity">,
-	Member<T, "pressure">
->;
-
-using CavityFieldD2Q9 = CellField<D2Q9, CellStruct<D2Q9>>;
-}
-}
-}
-
-void set_geometry(saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt){
-	using namespace kel::lbm;
-	/*
-	apply_for_cells([](auto& cell, std::size_t i, std::size_t j){
-		uint8_t val = 0;
-		if(j == 1){
-			val = 2u;
-		}
-		if(i == 1 || (i+2) == dim_x || (j+2) == dim_y){
-			val = 3u;
-		}
-		if(i > 1 && (i+2) < dim_x && j > 1 && (j+2) < dim_y){
-			val = 1u;
-		}
-		if(i == 0 || j == 0 || (i+1) == dim_x || (j+1) == dim_y){
-			val = 0u;
-		}
-		cell.template get<"info">()(0u).set(val);
-	}, latt);
-	*/
-}
-
-void lbm_step(
-	saw::data<kel::lbm::sch::CavityFieldD2Q9>& latt,
-	bool even_step
-){
-	using namespace kel::lbm;
-  using dfi = df_info<sch::T,sch::D2Q9>;
-
-	component<cmpt::BGK,sch::D2Q9> coll;
-	coll.relaxation_ = 0.5384;
-	component<cmpt::ConstRhoBGK,sch::D2Q9> rho_coll;
-	rho_coll.relaxation_ = 0.5384;
-	rho_coll.rho_ = 1.0;
-
-	component<cmpt::BounceBack,sch::D2Q9> bb;
-	component<cmpt::MovingWall,sch::D2Q9> bb_lid;
-	bb_lid.lid_vel = {0.1,0.0};
-
-	// Collide
-	apply_for_cells([&](auto& cell, std::size_t i, std::size_t j){
-		auto& df = even_step ? cell.template get<"dfs_old">() : cell.template get<"dfs">();
-		auto& info = cell.template get<"info">();
-
-		auto info_val = info({0u}).get();
-		switch(info_val){
-		case 1u:
-			coll.apply(df);
-			break;
-		case 2u:
-			// bb.apply(df);
-			bb_lid.apply(df);
-			break;
-		case 3u:
-			bb.apply(df);
-			break;
-		}
-	}, latt);
-
-	// Stream
-	for(uint64_t i = 1; (i+1) < latt.template get_dim_size<0>().get(); ++i){
-		for(uint64_t j = 1; (j+1) < latt.template get_dim_size<1>().get(); ++j){
-			auto& cell = latt({{i,j}});
-			auto& df_new = even_step ? cell.template get<"dfs">() : cell.template get<"dfs_old">();
-			auto& info_new = cell.template get<"info">();
-
-			if(info_new({0u}).get() > 0u && info_new({0u}).get() != 2u){
-				for(uint64_t k = 0u; k < sch::D2Q9::Q; ++k){
-					auto dir = dfi::directions[dfi::opposite_index[k]];
-					auto& cell_dir_old = latt({{i+dir[0],j+dir[1]}});
-
-					auto& df_old = even_step ? cell_dir_old.template get<"dfs_old">() : cell_dir_old.template get<"dfs">();
-					auto& info_old = cell_dir_old.template get<"info">();
-
-					if( info_old({0}).get() == 2u ){
-						auto& df_old_loc = even_step ? latt({{i,j}}).template get<"dfs_old">() : latt({{i,j}}).template get<"dfs">();
-						df_new({k}) = df_old_loc({dfi::opposite_index.at(k)}) - 2.0 * dfi::inv_cs2 * dfi::weights.at(k) * 1.0 * ( bb_lid.lid_vel[0] * dir[0] + bb_lid.lid_vel[1] * dir[1]);
-						// dfs({dfi::opposite_index.at(i)}) = dfs_cpy({i}) - 2.0 * dfi::weights[i] * 1.0 * ( lid_vel[0] * dfi::directions[i][0] + lid_vel[1] * dfi::directions[i][1]) * dfi::inv_cs2;
-					} else {
-						df_new({k}) = df_old({k});
-					}
-				}
-			}
-		}
-	}
-}
-
-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};
-	lbm::particle_system<sch::T,2,sch::Particle<sch::T,2>> system;
-
-	/**
-	 * Set meta information describing what this cell is
-	 */
-	set_geometry(lattice);
-
-
-	uint64_t lattice_steps{128u};
-	uint64_t print_every{64u};
-	bool even_step{true};
-
-	uint64_t file_num{0u};
-
-	saw::data<sch::Array<sch::MacroStruct<sch::T,sch::D2Q9::D>,sch::D2Q9::D>> macros{dim};
-
-	for(uint64_t step{0u}; step < lattice_steps; ++step){
-
-		lbm_step(lattice, even_step);
-
-		even_step = not even_step;
-
-	}
-
-	return 0;
-}
-- 
cgit v1.2.3