From bdd5db30912f659d55b05a218992abf9d9738910 Mon Sep 17 00:00:00 2001
From: henry <henry>
Date: Fri, 24 Apr 2009 08:44:22 +0100
Subject: [PATCH] Divide-by-zero fix provided by Niklas Nordin.

---
 .../spraySubModels/collisionModel/trajectoryModel/trajectoryCM.H        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lagrangian/dieselSpray/spraySubModels/collisionModel/trajectoryModel/trajectoryCM.H b/src/lagrangian/dieselSpray/spraySubModels/collisionModel/trajectoryModel/trajectoryCM.H
index fd01d43..a7cca2b 100644
--- a/src/lagrangian/dieselSpray/spraySubModels/collisionModel/trajectoryModel/trajectoryCM.H
+++ b/src/lagrangian/dieselSpray/spraySubModels/collisionModel/trajectoryModel/trajectoryCM.H
@@ -8,7 +8,7 @@ scalar magVRel = mag(vRel);
 vector p = p2().position() - p1().position();
 scalar dist = mag(p);
 
-scalar vAlign = vRel & (p/dist);
+scalar vAlign = vRel & (p/(dist+SMALL));
 
 if (vAlign > 0)
 {
-- 
2.11.4.GIT