CFD Online Logo CFD Online URL
Home > Forums > Mesh Generation & Pre-Processing Software > Pointwise & Gridgen

Domain extrusion along path causes excessive maximum included angle

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 31, 2015, 13:17
Default Domain extrusion along path causes excessive maximum included angle
New Member
M Kosec
Join Date: Jul 2015
Posts: 1
Rep Power: 0
mk2000 is on a distinguished road

I am using pointwise 17.2 to mesh an interface between two surfaces. One surface is a plate with a dent and another is a wing (see picture 1.) Subsequent SU2 runs of low Re RANS simulations were found to diverge (with settings that were found to work for a very similar arrangement).

Procedure followed:
Initially, I created a domain on the flat plate. Then, to get the desired y+ in the boundary layer of the plate, I extruded the domain along a path (a connector standing up vertically with the desired spacing). Lastly, I flattened the top part of the block with a projection onto a plane.

Issue description:
The extrusion along the path creates elements at the trailing edge where the maximum included angle is 179.9 degrees (see picture 2). By using the grid>solve option (angle control> orthogonal to trailing edge) I was able to reduce the angle to 155 degrees on a cut of the block at the trailing edge in 15 iterations. However using the grid>solve. on the entire block, failed to resolve the issue in 200 iterations.

Is there a way to manually set the rotation of IJK lines as they leave a particular connector?
Is there a preferable way to extrude with a given spacing that does not lead to excessive included angles?
Attached Images
File Type: jpg maxangle_2.jpg (44.5 KB, 17 views)
File Type: jpg maxangle_1.jpg (82.3 KB, 16 views)
mk2000 is offline   Reply With Quote


angle, extrusion, ill-conditioned, included, maximum

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
[Netgen] Import netgen mesh to OpenFOAM hsieh OpenFOAM Meshing & Mesh Conversion 32 September 13, 2011 06:50
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 05:05
Concentric tube heat exchanger (Air-Water) Young CFX 5 October 7, 2008 00:17
CFX Solver Memory Error mike CFX 1 March 19, 2008 08:22
Proper output of angle of attack in CFX post Kevin CFX 3 October 18, 2006 13:18

All times are GMT -4. The time now is 19:16.