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

Atmospheric boundary layer simulation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 22, 2011, 10:36
Default Atmospheric boundary layer simulation
  #1
New Member
 
Join Date: Nov 2010
Posts: 4
Rep Power: 6
samygero is on a distinguished road
Hello,

I am trying to simulate an atmospheric boundary layer over some buidings with the standard k-epsilon model and with velocity, turbulent kinetic energy and it's dissipation rate profiles in the velocity entry.

The purpose is to insert porous media in order to induce pressure drops.

The simulations converge perfectly well in first order calculations (in second ordrer they do not converge).

When I insert porous jumps ( because more robust then porous media) the residulas oscillate around a certain value. For the epsilon residuals they oscillate around 0.18 and the rest are under 1*10^-3.

I tried to adapt the mesh by region around the porous media without any success.

Does anybody have any suggestions?

thanks in advance,
Samy
samygero is offline   Reply With Quote

Reply

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
Wind turbine simulation Saturn CFX 34 October 16, 2014 05:27
car simulation - boundary layer street sanchezz CFX 8 January 13, 2010 19:05
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 05:05
transient simulation of a rotating rectangle icesniffer CFX 1 August 8, 2009 07:25
Ansys CFX Atmospheric Boundary Layer Marco CFX 1 December 1, 2008 21:46


All times are GMT -4. The time now is 02:01.