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

SIMPLE or density-based?

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

LinkBack Thread Tools Display Modes
Old   December 28, 2004, 21:53
Default SIMPLE or density-based?
Posts: n/a
Hello, I have a problem with the code I am writing.It is about compressible flow (Mach~0.3).I have read many papers about Simple and how it works,but none about density-based algorithms.I do not know even the exactly equations that are used (except the continuity and the ideal gas law) and about convergenge techiques. If anyone can help me or send me a fortran subroutine which deals with density-based algorithm. Thank you in advance
  Reply With Quote

Old   December 29, 2004, 02:53
Default Re: SIMPLE or density-based?
Posts: n/a

Visit the above Homepage of Eli Turkel, you will get lot of references on Low Mach number preconditioning. As I have experience of writing 2 CFD codes from scratch (1-with Jameson scheme Cylindrical Coordiantes system and Second with Wiess and Smith Preconditioned Cartisian Coordiantes), I would prefer to write a precondtioned code from scratch.

Do a google search for : "preconidtioning" + "all speed" + "navier-stokes". You will get a lot of refrences.

Also I have send a paper to you. It is about 2D preconidtioned equations for aerodynamics. Also visit for their internal reports.

Regards and Good Luck

  Reply With Quote

Old   January 14, 2005, 22:01
Default Re: SIMPLE or density-based?
abhishek gupta
Posts: n/a
hi george, Check out Artificial Compressiblity Algorithm, its a density based algorithm but for incompressible flow. Check out chorin's paper.

cheers abhishek
  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
Variable Density Function ryzd FLUENT 1 August 25, 2011 14:16
Using pressure based solver for compressible flows aamer Main CFD Forum 2 June 15, 2011 12:45
Absorption coeff:Cell or domain based for boiler DEV FLUENT 1 October 1, 2008 06:57
turbulent separated flows Yin NUMECA 9 February 19, 2003 12:50
Density based codes? H.S.Muralidhara Main CFD Forum 3 May 28, 1999 06:29

All times are GMT -4. The time now is 01:21.