From 14ba5f268c788d530bfd0326dd2ed551957cb7c6 Mon Sep 17 00:00:00 2001
From: Ingmar Schoegl <ischoegl@lsu.edu>
Date: Mon, 10 Aug 2020 08:45:41 -0500
Subject: [PATCH] [1D] Fix upstream boundary condition for IonFlow

---
 src/oneD/IonFlow.cpp | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/oneD/IonFlow.cpp b/src/oneD/IonFlow.cpp
index 0f894eb17cd..9cf30f5b5ad 100644
--- a/src/oneD/IonFlow.cpp
+++ b/src/oneD/IonFlow.cpp
@@ -177,12 +177,6 @@ void IonFlow::evalResidual(double* x, double* rsd, int* diag,
 
     for (size_t j = jmin; j <= jmax; j++) {
         if (j == 0) {
-            // enforcing the flux for charged species is difficult
-            // since charged species are also affected by electric
-            // force, so Neumann boundary condition is used.
-            for (size_t k : m_kCharge) {
-                rsd[index(c_offset_Y + k, 0)] = Y(x,k,0) - Y(x,k,1);
-            }
             rsd[index(c_offset_E, j)] = E(x,0);
             diag[index(c_offset_E, j)] = 0;
         } else if (j == m_points - 1) {