CFD Online Logo CFD Online URL
Home > Forums > FLUENT

reynolds number flow

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

LinkBack Thread Tools Display Modes
Old   August 30, 2008, 00:12
Default reynolds number flow
Posts: n/a
Dear all

I ran a large eddy simulation of a flow over a urban terrain. After an initial run I checked the results of flow over certain points and found it to be reasonable. I then doubled the viscosity and the inlet velocity. I reran the simulation, then found the flow pattern was similar, as would be expected with the same reynolds number.

However the velocities are slightly different at the points. Is this a reasonable result ?

Also should the sgs viscosity be doubled also. I assume not since the viscosity of the SGS model is based on the strain rate and has already been changed since the inlet velocity has been changed

thanks richard
  Reply With Quote


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
Low Reynolds Number Flow over a Flat Plate Go FLUENT 4 August 28, 2013 05:19
Turbulence model for low Reynolds number flow? Nokadu Main CFD Forum 3 May 26, 2013 11:42
Low Reynolds number flow Terje CFX 3 June 20, 2007 08:10
Free Flow Reynolds Number bharath Main CFD Forum 0 November 21, 2002 16:37
Low Reynolds Number Flow Computation A.M.Yang Main CFD Forum 7 January 22, 2002 13:01

All times are GMT -4. The time now is 19:44.