From a913b7ad54214f3b845a5a8ad1c55b0e0116d39f Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Mon, 28 Apr 2014 15:07:53 +0400
Subject: [PATCH] 22576: EDF 8029 SMESH: Bug with 3D viscous layer

  Add more smoothing loops after fixing all bad faces
---
 src/StdMeshers/StdMeshers_ViscousLayers.cxx | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/StdMeshers/StdMeshers_ViscousLayers.cxx b/src/StdMeshers/StdMeshers_ViscousLayers.cxx
index 1f6d46263..11dec7d1e 100644
--- a/src/StdMeshers/StdMeshers_ViscousLayers.cxx
+++ b/src/StdMeshers/StdMeshers_ViscousLayers.cxx
@@ -2379,8 +2379,8 @@ bool _ViscousBuilder::smoothAndCheck(_SolidData& data,
     else
     {
       // smooth on FACE's
-      int step = 0, badNb = 0; moved = true;
-      while (( ++step <= 5 && moved ) || improved )
+      int step = 0, stepLimit = 5, badNb = 0; moved = true;
+      while (( ++step <= stepLimit && moved ) || improved )
       {
         dumpFunction(SMESH_Comment("smooth")<<data._index<<"_Fa"<<sInd
                      <<"_InfStep"<<nbSteps<<"_"<<step); // debug
@@ -2391,6 +2391,10 @@ bool _ViscousBuilder::smoothAndCheck(_SolidData& data,
           moved |= data._edges[i]->Smooth(badNb);
         improved = ( badNb < oldBadNb );
 
+        // issue 22576. no bad faces but still there are intersections to fix
+        if ( improved && badNb == 0 )
+          stepLimit = step + 3;
+
         dumpFunctionEnd();
       }
       if ( badNb > 0 )
-- 
2.30.2