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Jibran Haider July 21, 2008 02:40

CREATION OF BOUNDARY LAYER
 
Hi. i have a question regarding the creation of a boundary layer around the 2d cylinder. when i create the boundary layer it becomes pointed near the rear stagnation point. i want to create a dense boundary layer so i have kept the following parameters in GAMBIT: first row=0.00003 growth factor=1.15 rows=20 when i increase the rows boundary layer becomes more distorted. i would really appreciate if someone can help meto create aperfect boundary layer. thanks

ravi July 24, 2008 05:08

Re: CREATION OF BOUNDARY LAYER
 
Hi,

did u use uniform or aspect ratio based Boun.. layer..

if u use unoform u won t get any distortions.

Jibran Haider July 31, 2008 14:41

Re: CREATION OF BOUNDARY LAYER
 
actually i have tried both but no success

ravi kumar August 1, 2008 01:33

Re: CREATION OF BOUNDARY LAYER
 
hi,

then try to reduce the first cell height i.e. instead of first row=0.00003... increase its value... may be 0.0003 for any problem this fine ness is more than sufficient. ok try this,.


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