From 3c496ae4c79cfed602e8ef7c329b31dd81522804 Mon Sep 17 00:00:00 2001
From: Andrew Heather <a.heather@opencfd.co.uk>
Date: Wed, 19 Oct 2016 13:19:34 +0100
Subject: [PATCH] ENH: noiseModel: Updated check for uniform time step size

---
 src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C b/src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C
index 145f992725..21d52bb3dd 100644
--- a/src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C
+++ b/src/randomProcesses/noise/noiseModels/noiseModel/noiseModel.C
@@ -53,7 +53,7 @@ Foam::scalar Foam::noiseModel::checkUniformTimeStep
                 deltaT = dT;
             }
 
-            if (mag(deltaT - dT) > SMALL)
+            if (mag(dT/deltaT - 1) > 1e-8)
             {
                 FatalErrorInFunction
                     << "Unable to process data with a variable time step"