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

Exact Riemann solver

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

LinkBack Thread Tools Display Modes
Old   July 2, 2006, 15:17
Default Exact Riemann solver
Posts: n/a
Hi guys, I'm a CFD-newbie currently playing with Euler equations and the stuff around. At the moment doing some shock tube and de Haller tests in 1D and 2D. I've developed some codes for myself, download and modified some others and would have a couple of (possible stupid) questions: 1. How do an exact (iterative) Riemann solver recognizes straight and converging/diverging/variable area pipe? I've found some two on he web, both are slightly different (in the way they're programmed, both use secant method) and nowhere in them a pipe diameter is stated... (at least I have not found it (yet))

2. Is there a 2D exact Riemann solver???
  Reply With Quote

Old   July 5, 2006, 06:25
Default Re: Exact Riemann solver
Posts: n/a
in a 2D case the convective flux appearing in the Euler system of equation is the vectorial F scalar the normal of the surface on which this flux is computed so in a direction normal to the surface the problem of the flux calculation reduces to a 1D problem!
  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
Quarter Burner mesh with periosic condition SamCanuck FLUENT 2 August 31, 2011 11:34
2D riemann solver moein_joon27 Main CFD Forum 1 January 10, 2011 06:45
Convergence with coupled implicit solver Henrik Ström FLUENT 1 October 29, 2005 03:57
CFX 5.5 Roued CFX 1 October 2, 2001 16:49
Setting a B.C using UserFortran in 4.3 tokai CFX 10 July 17, 2001 16:25

All times are GMT -4. The time now is 20:26.