From f7ca62e6ee574ac0f1130697b4eb816af33f5634 Mon Sep 17 00:00:00 2001
From: Shuang Chen <gechenshuang88@gmail.com>
Date: Mon, 1 Feb 2021 16:15:14 +0100
Subject: [PATCH] [BHE/2U] fixed the pipe wall thermal resistance

---
 ProcessLib/HeatTransportBHE/BHE/BHE_2U.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ProcessLib/HeatTransportBHE/BHE/BHE_2U.cpp b/ProcessLib/HeatTransportBHE/BHE/BHE_2U.cpp
index b53e9c4902e..0fbc897fb0e 100644
--- a/ProcessLib/HeatTransportBHE/BHE/BHE_2U.cpp
+++ b/ProcessLib/HeatTransportBHE/BHE/BHE_2U.cpp
@@ -245,8 +245,8 @@ std::array<double, BHE_2U::number_of_unknowns> BHE_2U::calcThermalResistances(
     double const R_con_b = chi_new * R_g;
 
     // Eq. 29 and 30
-    double const R_fig = 2 * R_adv_i + 2 * R_con_a + R_con_b;
-    double const R_fog = 2 * R_adv_o + 2 * R_con_a + R_con_b;
+    double const R_fig = R_adv_i + R_con_a + R_con_b;
+    double const R_fog = R_adv_o + R_con_a + R_con_b;
 
     return {{R_fig, R_fog, R_gg_1, R_gg_2, R_gs}};
 
-- 
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