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

queries on M.Peric's example code

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

LinkBack Thread Tools Display Modes
Old   April 18, 2006, 09:36
Default queries on M.Peric's example code
Posts: n/a
in the codes of Computational methods for fluid dynamics, density sets as 1, and viscosity is equal to 0.001. So what kind of material does it delegate? water (density=1000, viscosity=0.001), or Air (density=1.29, viscosity=0.000001). the corresponding code can be downloaded from springe's ftp
  Reply With Quote

Old   April 18, 2006, 12:08
Default Re: queries on M.Peric's example code
Posts: n/a
The beauty of CFD, comparing to the experiment, is that you can specify any property values such as density and viscosity to the fluid. Let's say for a flow in pipe, Reynolds number determines the flow being laminar or turbulent. Re=(density*velocity*diameter/Viscosity). By adjusting density and/or viscosity, you can achieve desirable Re without changing velocity.
  Reply With Quote

Old   April 18, 2006, 19:28
Default Re: queries on M.Peric's example code
Posts: n/a
It solves the non-dimensional Navier-Stokes equations of Reynolds number=1000 for any fluids. If you read the Patankar's book, there is a section explaining this kind of treatment.
  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
The FOAM Documentation Project - SHUT-DOWN holger_marschall OpenFOAM 242 March 7, 2013 13:30
Debugging Unsteady 2-D Panel Method Code: Wake Modeling RajeshAero Main CFD Forum 5 November 10, 2011 06:48
How to make code run in parallel? cwang5 OpenFOAM Programming & Development 1 May 30, 2011 04:47
Open Source Vs Commercial Software MechE OpenFOAM 28 May 16, 2011 11:02
Small 3-D code Zdravko Stojanovic Main CFD Forum 2 July 19, 2010 10:11

All times are GMT -4. The time now is 16:20.