From c95bf5e31d627456713266e29f5ca32e1bad9216 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Wed, 22 Mar 2017 18:30:51 +0000
Subject: [PATCH] functionObjects::fieldAverage: Initialize totalTime_ for new
 fields following restart

Patch contributed by Timo Niemi, VTT.
Resolves bug-report https://bugs.openfoam.org/view.php?id=2510
---
 .../field/fieldAverage/fieldAverage.C            | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/functionObjects/field/fieldAverage/fieldAverage.C b/src/functionObjects/field/fieldAverage/fieldAverage.C
index 43ab23975..d337b0db5 100644
--- a/src/functionObjects/field/fieldAverage/fieldAverage.C
+++ b/src/functionObjects/field/fieldAverage/fieldAverage.C
@@ -76,6 +76,17 @@ void Foam::functionObjects::fieldAverage::initialize()
     {
         totalTime_.setSize(faItems_.size(), obr_.time().deltaTValue());
     }
+    else
+    {
+        // Check if totalTime_ has been set otherwise initialize
+        forAll(totalTime_, fieldi)
+        {
+            if (totalTime_[fieldi] < 0)
+            {
+                totalTime_[fieldi] = obr_.time().deltaTValue();
+            }
+        }
+    }
 
     resetFields();
 
@@ -242,7 +253,10 @@ void Foam::functionObjects::fieldAverage::readAveragingProperties()
         Log << "    Restarting averaging for fields:" << nl;
 
         totalIter_.setSize(faItems_.size(), 1);
-        totalTime_.setSize(faItems_.size());
+
+        // Initialize totalTime with negative values
+        // to indicate that it has not been set
+        totalTime_.setSize(faItems_.size(), -1);
 
         forAll(faItems_, fieldi)
         {