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

Riemann solver

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 14, 2008, 17:50
Default Riemann solver
  #1
shuo
Guest
 
Posts: n/a
There are many approximate Riemann solvers for Godunov type schemes. Given the capability of modern computers, why not just stick to the exact iterative Riemann solver? Are there other issues concerned such as stability?

Shuo
  Reply With Quote

Old   December 16, 2008, 06:04
Default Re: Riemann solver
  #2
abouziar
Guest
 
Posts: n/a
The exact Riemann's solver is more prefarable from a lot of points of v.. also from stability (you could find Prokopov articles and etc.), the main - the exact R.S. is a solution of the Fluid Structure Interaction problems, it is always stable, a problem - the exact R.S. for arbitrary state eq. (it is necessary to use numerecial integration for rarefaction wave)

  Reply With Quote

Old   December 17, 2008, 20:36
Default Re: Riemann solver
  #3
Shuo
Guest
 
Posts: n/a
In that case why bother using TVD I thought it was to minimise spurious oscillations near flow discontinuities.

Shuo
  Reply With Quote

Old   July 7, 2009, 13:21
Default
  #4
Member
 
Nishant Kumar
Join Date: Jun 2009
Posts: 32
Rep Power: 8
Nishu is on a distinguished road
Hi Shuo,

I am dealing with the same problem.
Were you able to figure it out? Reply me at babuu.nishu@gmail.com
Thanks
Nishu 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
smoothSolver diverges - solution in using PBiCG solver? makaveli_lcf OpenFOAM Running, Solving & CFD 3 September 11, 2013 12:44
Getting too many iterations by velocity solving (aborting). Changing U - Solver? suitup OpenFOAM Running, Solving & CFD 0 January 20, 2010 08:45
Riemann solver Eddy Main CFD Forum 0 January 8, 2010 05:13
compressible two phase flow in CFX4.4 youngan CFX 0 July 1, 2003 23:32
Mashing Problem? ji CFX 2 April 4, 2002 05:03


All times are GMT -4. The time now is 07:01.