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

3D street canyon

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 28, 2005, 10:59
Default 3D street canyon
Mahender Rao K
Posts: n/a
Is it preferrable to use LARGE EDDY SIMULATION over the K-e model for analysing the flow pattern in 3d street canyon.

my project mainly deals with analysing the flow of pollutants released by the automobiles by changing the wind direction normal to the street canyon.

I would be thankful to you if u send the url's of any related papers to 3D street canyon and some related results for validation.
  Reply With Quote

Old   May 11, 2005, 01:43
Default Re: 3D street canyon
Posts: n/a
yes..LES is always prefered ..for urban flows because RANS model overpredicts TKE. For experimental work on street can read Brown et. al.(2001), Steve Hanna, Petra Kastner klein, Eric pardyjak, S. Pal Arya, can search these name in you library catolog. i dont have the urls. For numerical simulations..Moin et. al,...

Its a very popular you wont find any difficulty in getting the literature

  Reply With Quote

Old   May 11, 2005, 15:22
Default Re: 3D street canyon
Posts: n/a
thanks akshay

now actually i have performed the simulation using K-epsilon and large eddy both of them but what i got are two extremely different flow patterns the one with k-e has got vortex flow and the one with LES has not got the vortex(with the same grid and boundary conditions), Is it that LES used for unsteady and 3D models for large scale makes the difference

if u would like to view my results i would be happy to send you which igot working on fluent to you email ID with your permission

thank you.
  Reply With Quote

Old   May 13, 2005, 18:55
Default Re: 3D street canyon
Posts: n/a
go to and search for "street canyon" you should hit at least 50.

the results should match, I have personaly reviewed this topic and according to the literature the results match (with sligth differences) but noting meaningful... check your model
  Reply With Quote

Old   January 31, 2011, 06:44
Join Date: Jan 2011
Posts: 42
Rep Power: 11
fek66 is on a distinguished road
I have problems to make geometry to study the effect of wind in 2D idealized street canyon. If any one experimented in ICEM CFX ?
fek66 is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] 2D Geom en street canyon model fek66 ANSYS Meshing & Geometry 9 June 23, 2015 06:22
Street Canyon Flow mapplekim Main CFD Forum 2 September 10, 2013 15:08
Street Canyon Aykut FLUENT 5 December 30, 2009 20:05
street canyon roze FLUENT 0 January 12, 2007 18:08
2D street canyon model Jay Purcell Main CFD Forum 0 September 4, 2006 21:51

All times are GMT -4. The time now is 20:10.