|May 18, 2010, 04:57||
drag of flat plate with cavity
Sijal Ahmed Memon (firstname.lastname@example.org)
Join Date: Mar 2009
Location: Islamabad Pakistan
Blog Entries: 6Rep Power: 38
I have strange problem in solving cavity flows.
My goemtry is Flat plate of 5 m and caity of 1.5 m in center of flat plate. the depth of caivty is .1 and .5 m.
I used 2d density based solver with sst model. Y plus is 1 and mesh is hyperbolically refined in vicinity of wall and at leading and trailing edge of cavity. Mesh is also refined in shear layer and floor of cavity. succesive Mesh refinment was also done but results do not vary as the first mesh is already very fine.
Now my problem is that my drag coefficient has supecious behaviour as given here:
For flat plate 0.0044
for .1 m cavity depth 0.00445
for 0.5 m cavity depth 0.0019
why drag is reducing for 0.5 m cavity depth case. I am stuck in this case. Your help is highly appreciated.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Questions about a Turbulent Flat Plate Case||tstorm||FLUENT||2||August 11, 2009 14:16|
|Flat Plate Drag & Lift||Joe||Main CFD Forum||3||October 24, 2008 14:17|
|entrance of a flat plate||mc||Main CFD Forum||0||April 24, 2007 22:38|
|Conjugate heat transfer for film-cooled flat plate||Michele||FLUENT||0||July 3, 2006 08:42|
|flat plate boundary layer data||Ekachai Juntasaro||Main CFD Forum||3||March 14, 2001 00:18|