From 7220084ddae1f4c6007f5111913cb7f87a794657 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Thu, 13 Aug 2026 13:11:05 +0200
Subject: Renaming velocity to momentum. for now

---
 modules/core/c++/boundary.hpp | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

(limited to 'modules/core/c++/boundary.hpp')

diff --git a/modules/core/c++/boundary.hpp b/modules/core/c++/boundary.hpp
index 7f185ad..e7567c9 100644
--- a/modules/core/c++/boundary.hpp
+++ b/modules/core/c++/boundary.hpp
@@ -133,14 +133,14 @@ template<typename FP, typename Descriptor, typename Encode>
 class component<FP, Descriptor, cmpt::Equilibrium, Encode> final {
 private:
 	saw::data<sch::Scalar<FP>> density_;
-	saw::data<sch::Vector<FP,Descriptor::D>> velocity_;
+	saw::data<sch::Vector<FP,Descriptor::D>> momentum_;
 public:
 	component(
 		saw::data<sch::Scalar<FP>> density__,
-		saw::data<sch::Vector<FP,Descriptor::D>> velocity__
+		saw::data<sch::Vector<FP,Descriptor::D>> momentum__
 	):
 		density_{density__},
-		velocity_{velocity__}
+		momentum_{momentum__}
 	{}
 
 	template<typename CellFieldSchema>
@@ -151,7 +151,7 @@ public:
 		
 		auto& dfs_old_f = (is_even) ? field.template get<"dfs_old">() : field.template get<"dfs">();
 
-		auto eq = equilibrium<FP,Descriptor>(density_,velocity_);
+		auto eq = equilibrium<FP,Descriptor>(density_,momentum_);
 
 		dfs_old_f.at(index) = eq;
 	}
@@ -726,12 +726,12 @@ public:
 template<typename T, typename Descriptor, bool East, typename Encode>
 class component<T, Descriptor, cmpt::ZouHeVelocityX<East>, Encode> final {
 private:
-	saw::data<sch::Vector<T,Descriptor::D>> velocity_;
+	saw::data<sch::Vector<T,Descriptor::D>> momentum_;
 public:
 	component(
-		saw::data<sch::Vector<T,Descriptor::D>> velocity__
+		saw::data<sch::Vector<T,Descriptor::D>> momentum__
 	):
-		velocity_{velocity__}
+		momentum_{momentum__}
 	{}
 
 	template<typename CellFieldSchema>
@@ -753,20 +753,20 @@ public:
 		}
 
 		saw::data<sch::Scalar<T>> rho;
-		rho.at({}) = (dfs.at({0u}) + dfs.at({4u}) + dfs.at({3u}) + dir_sum * 2) / (velocity_.at({{0u}}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0)});
+		rho.at({}) = (dfs.at({0u}) + dfs.at({4u}) + dfs.at({3u}) + dir_sum * 2) / (momentum_.at({{0u}}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0)});
 
 		if constexpr (East) {
-			dfs.at({2u}) = dfs.at({1u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(2.0 / 3.0)} * rho.at({}) * velocity_.at({{0u}});
-			dfs.at({6u}) = dfs.at({5u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * velocity_.at({{0u}})
-				+ (dfs.at({3u}) - dfs.at({4u}) + rho.at({}) * velocity_.at({{1u}})) * 0.5f;
-			dfs.at({8u}) = dfs.at({7u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * velocity_.at({{0u}})
-				+ (dfs.at({4u}) - dfs.at({3u}) + rho.at({}) * velocity_.at({{1u}})) * 0.5f;
+			dfs.at({2u}) = dfs.at({1u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(2.0 / 3.0)} * rho.at({}) * momentum_.at({{0u}});
+			dfs.at({6u}) = dfs.at({5u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * momentum_.at({{0u}})
+				+ (dfs.at({3u}) - dfs.at({4u}) + rho.at({}) * momentum_.at({{1u}})) * 0.5f;
+			dfs.at({8u}) = dfs.at({7u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * momentum_.at({{0u}})
+				+ (dfs.at({4u}) - dfs.at({3u}) + rho.at({}) * momentum_.at({{1u}})) * 0.5f;
 		}else if constexpr ( not East ){
-			dfs.at({1u}) = dfs.at({2u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(2.0 / 3.0)} * rho.at({}) * velocity_.at({{0u}});
-			dfs.at({5u}) = dfs.at({6u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * velocity_.at({{0u}})
-				+ (dfs.at({4u}) - dfs.at({3u}) + rho.at({}) * velocity_.at({{1u}}))*0.5f;
-			dfs.at({7u}) = dfs.at({8u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * velocity_.at({{0u}})
-				+ (dfs.at({3u}) - dfs.at({4u}) + rho.at({}) * velocity_.at({{1u}}))*0.5f;
+			dfs.at({1u}) = dfs.at({2u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(2.0 / 3.0)} * rho.at({}) * momentum_.at({{0u}});
+			dfs.at({5u}) = dfs.at({6u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * momentum_.at({{0u}})
+				+ (dfs.at({4u}) - dfs.at({3u}) + rho.at({}) * momentum_.at({{1u}}))*0.5f;
+			dfs.at({7u}) = dfs.at({8u}) + saw::data<T>{static_cast<saw::native_data_type<T>::type>(1.0 / 6.0)} * rho.at({}) * momentum_.at({{0u}})
+				+ (dfs.at({3u}) - dfs.at({4u}) + rho.at({}) * momentum_.at({{1u}}))*0.5f;
 		}
 	}
 };
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