CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

[snappyHexMesh] Layers collapsing problem

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 12, 2018, 01:36
Default Layers collapsing problem
  #1
New Member
 
Manideep Reddy
Join Date: Aug 2017
Posts: 7
Rep Power: 8
Manideep Reddy is on a distinguished road



Dear All,

Greetings of the day..!

I am having a peculiar problem with SnappyHexMesh layer generation. Mine is a simple 3D geometry. Even for this, layers are collapsing and not continuous throughout the surface. I have attached screenshot of layers generated and below I am mentioning my parametres for controlloing layer generation. Can anyone say what is the parametre that I have to change to get nice continuous layers.

https://drive.google.com/open?id=1Z8...ooUaPExsnlFgmJ

https://drive.google.com/open?id=12U...IuegG2s8Xip8ZQ


addLayersControls
{
relativeSizes true;
layers
{
"(lowerWall|motorBike).*"
{
nSurfaceLayers 10;
}
}

expansionRatio 1;
finalLayerThickness 0.2;
minThickness 0.1;
nGrow 0;
featureAngle 180;
slipFeatureAngle 30;
nRelaxIter 3;
nSmoothSurfaceNormals 1;
nSmoothNormals 3;
nSmoothThickness 10;
maxFaceThicknessRatio 0.5;
maxThicknessToMedialRatio 0.3;
minMedianAxisAngle 90;
nBufferCellsNoExtrude 0;
nLayerIter 50;
}
Manideep Reddy is offline   Reply With Quote

Old   March 12, 2018, 03:15
Default
  #2
New Member
 
JD
Join Date: May 2017
Posts: 24
Rep Power: 8
dickcruz is on a distinguished road
Quote:

addLayersControls
{
relativeSizes true;
layers
{
"(lowerWall|motorBike).*"
{
nSurfaceLayers 10;
}
}

}
Do you have just the one patch?
dickcruz is offline   Reply With Quote

Old   March 12, 2018, 07:09
Default
  #3
New Member
 
Manideep Reddy
Join Date: Aug 2017
Posts: 7
Rep Power: 8
Manideep Reddy is on a distinguished road
No, I have few other patches. But I need to add layers only on the motorBike patch.
Manideep Reddy is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
BuoyantBoussinesqSimpleFoam_Facing problem Mondal131211 OpenFOAM Running, Solving & CFD 1 April 10, 2019 19:41
[snappyHexMesh] Problem with curves and layers Ouschen OpenFOAM Meshing & Mesh Conversion 1 January 24, 2019 08:49
[snappyHexMesh] problem with snappyHexMesh:fail to add Boundary Layers gogo OpenFOAM Meshing & Mesh Conversion 0 January 7, 2019 03:23
[snappyHexMesh] SHM addLayers problem: boundary layers collapsing on a patch DOFuser OpenFOAM Meshing & Mesh Conversion 1 October 22, 2015 08:09
Face(Domain) collapsing problem prodo Pointwise & Gridgen 1 June 14, 2015 17:47


All times are GMT -4. The time now is 13:21.