CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM

Simulating ABL flow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 10, 2011, 10:52
Default Simulating ABL flow
  #1
Member
 
Jubayer
Join Date: Oct 2009
Location: The University of Western Ontario, London, Ontario
Posts: 42
Blog Entries: 1
Rep Power: 7
cm_jubayer is on a distinguished road
Hi,

I am simulating ABL flow for an open terrain (zo = 0.03m) in an empty domain with SST k-omega turbulence model using simpleFoam. At the bottom of the domain I am using nutRoughWallFunction for nut, kqRWallFunction for k and omegaWallFunction for omega. My inlet profiles (U, K and omega) are based on ESDU. For U and omega, inlet (at x=0 m) and incident (x=8.26 m) profiles are similar enough. But for k I am getting huge stream-wise gradients compared to FLUENT (using same boundary conditions). Can someone tell me what is the reason for getting large stream-wise gradient for k?

Thanks.
cm_jubayer is offline   Reply With Quote

Reply

Tags
abl flow, kqrwallfunction, open terrain

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
Flow meter Design CD adapco Group Marketing CD-adapco 3 June 21, 2011 08:33
simulating cotton flow in a pipe abdul moqeet FLUENT 0 December 27, 2010 09:09
Simulating a high pressure flow through a valve Kromagnsss FLUENT 8 July 2, 2010 05:20
Can 'shock waves' occur in viscous fluid flows? diaw Main CFD Forum 105 November 20, 2009 05:19
Simulating flow past airfoil with different AOA Quarkz Main CFD Forum 2 January 6, 2006 11:56


All times are GMT -4. The time now is 00:05.