From acc06f3727bf4cbef00fd09eaf500ad0ef2973be Mon Sep 17 00:00:00 2001
From: labourasse <labourassee@gmail.com>
Date: Wed, 29 Mar 2023 12:24:43 +0200
Subject: [PATCH] allows triangular faces for advection
---
src/scheme/FluxingAdvectionSolver.cpp | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/src/scheme/FluxingAdvectionSolver.cpp b/src/scheme/FluxingAdvectionSolver.cpp
index 4576dedcb..27f724ff3 100644
--- a/src/scheme/FluxingAdvectionSolver.cpp
+++ b/src/scheme/FluxingAdvectionSolver.cpp
@@ -222,6 +222,28 @@ FluxingAdvectionSolver<3>::_computeAlgebraicFluxingVolume()
TinyMatrix<3> M2(b1, a2 + b2, a3);
TinyMatrix<3> M3(a1, b2, a3 + b3);
+ algebraic_fluxing_volume[face_id] = (det(M1) + det(M2) + det(M3)) / 12;
+ } else if (face_to_node.size() == 3) {
+ const Rd& x0 = old_xr[face_to_node[0]];
+ const Rd& x1 = old_xr[face_to_node[1]];
+ const Rd& x2 = old_xr[face_to_node[2]];
+
+ const Rd& x3 = new_xr[face_to_node[0]];
+ const Rd& x4 = new_xr[face_to_node[1]];
+ const Rd& x5 = new_xr[face_to_node[2]];
+
+ const Rd& a1 = x5 - x1;
+ const Rd& a2 = x5 - x2;
+ const Rd& a3 = x5 - x3;
+
+ const Rd& b1 = x5 - x0;
+ const Rd& b2 = x4 - x0;
+ const Rd& b3 = x2 - x0;
+
+ TinyMatrix<3> M1(a1 + b1, a2, a3);
+ TinyMatrix<3> M2(b1, a2 + b2, a3);
+ TinyMatrix<3> M3(a1, b2, a3 + b3);
+
algebraic_fluxing_volume[face_id] = (det(M1) + det(M2) + det(M3)) / 12;
} else {
throw NotImplementedError("Not implemented for non quad faces");
--
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