From a74171fa265ef24931aaf91d4b9a35ab419284c0 Mon Sep 17 00:00:00 2001
From: lbutler <lukepbutler@gmail.com>
Date: Tue, 28 May 2024 22:18:29 -0400
Subject: [PATCH] Fix emitter-related NaN errors by initializing zero
 EmitterFlow to 1.0.

Co-Authored-By: Lew Rossman <LRossman@outlook.com>
---
 src/epanet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/epanet.c b/src/epanet.c
index 86b510b..7e3ef8f 100644
--- a/src/epanet.c
+++ b/src/epanet.c
@@ -2429,6 +2429,7 @@ int DLLEXPORT EN_setnodevalue(EN_Project p, int index, int property, double valu
         if (value < 0.0) return 209;
         if (value > 0.0) value = pow((Ucf[FLOW] / value), hyd->Qexp) / Ucf[PRESSURE];
         Node[index].Ke = value;
+        if (hyd->EmitterFlow[index] == 0.0) hyd->EmitterFlow[index] = 1.0;
         break;
 
     case EN_INITQUAL: