CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

y+ for compression corner

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

LinkBack Thread Tools Display Modes
Old   April 9, 2010, 02:17
Question y+ for compression corner
New Member
Arianna Bosco
Join Date: Apr 2010
Posts: 1
Rep Power: 0
AriBo is on a distinguished road
Hi all,
I am simulating a 40 degree compression corner at Re=10x10^6 and Mach=6.7. I use a Reynolds stress model and no wall functions.
The initial wall resolution was 1x10^-6. I noticed that the y+ was approx 7 in the reattachment region so I decreased the wall resolution. To get a y+=1 I need a wall resolution of 1x10^-8. Increasing the wall resolution has an influence on the peak heating at reattachement (heat fluxes).
I use the simulation for comparison with experimental results. I think that such a wall resolution is smaller than the scratches on the model's surface I used in the experiment.
I wonder whether it make sense to have such small grid spacing at wall and if the results I get are physically meaningful.
AriBo is offline   Reply With Quote


compressible flow, compression corner, y plus

Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Corner B.C. shuo Main CFD Forum 0 November 9, 2009 07:22
modelling corner vanes with porous media matt FLUENT 0 February 19, 2008 09:29
ICEM meshing of sharp corner Sans CFX 3 January 17, 2008 08:36
Corner Vortex for Backward Facing Step Patrick G. Hu Main CFD Forum 0 August 6, 2002 09:34
separation region in corner flows submitted to curvature effects Stephane Main CFD Forum 2 July 13, 1998 19:06

All times are GMT -4. The time now is 10:35.