From 45176fc5a35b5843dadf1712b297ab23abe1aec5 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Wed, 19 Mar 2025 14:31:38 +0100
Subject: Compute the collision

---
 c++/examples/cavity_2d.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'c++/examples/cavity_2d.cpp')

diff --git a/c++/examples/cavity_2d.cpp b/c++/examples/cavity_2d.cpp
index ccb6433..f0d6794 100644
--- a/c++/examples/cavity_2d.cpp
+++ b/c++/examples/cavity_2d.cpp
@@ -80,7 +80,7 @@ public:
 			eq[i] = dfi::weights[i] * rho * (
 				1
 				+ vel_c_cs2
-				+ vel_c_cs2 * vel_c_cs2
+				+ vel_c_cs2 * vel_c_cs2 / 2.
 				- ( vel[0] * vel[0] + vel[1] * vel[1] ) / ( 2. * dfi::cs2 )
 			);
 		}
@@ -89,7 +89,7 @@ public:
 	}
 
 	void compute_rho_u(
-		saw::data<sch::DfCell<sch::D2Q5>>& dfs,
+		saw::data<sch::DfCell<Desc>>& dfs,
 		typename saw::native_data_type<sch::T>::type& rho,
 		std::array<typename saw::native_data_type<sch::T>::type, 2>& vel
 	){
@@ -107,6 +107,15 @@ public:
 		vel[0] /= rho;
 		vel[1] /= rho;
 	}
+
+	void apply(saw::data<sch::DfCell<Desc>>& dfs){
+		for(uint64_t i = 0u; i < Desc::Q; ++i){
+			typename saw::native_data_type<sch::T>::type rho;
+			std::array<typename saw::native_data_type<sch::T>::type, Desc::D> vel;
+			compute_rho_u(dfs,rho,vel);
+			auto eq = equilibrium(rho,vel);
+		}
+	}
 };
 }
 }
-- 
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