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

How to use high-resolution FVM to NS equation?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 11, 2007, 05:41
Default How to use high-resolution FVM to NS equation?
  #1
billpeace
Guest
 
Posts: n/a
I have read two book,one is "Riemann solvers and numerical methods for fluid dynamics" wrote by F.toro,another is "Finite Volume Methods for Hyperbolic Problems" wrote by J.leveque. These book are mainle concerned on hyperbolic eqution. I want to use these method to Navier-stokes eqution,how can i solve with viscous? could you tell me some book about full discussion of these issues?
  Reply With Quote

Old   October 11, 2007, 07:22
Default Re: How to use high-resolution FVM to NS equation?
  #2
Newton
Guest
 
Posts: n/a
Hi,

I think, u can use the book from Malalasekera for a basic introduction on how to solve the NS equations. For an advanced approach, the Ferziger book is better...

In those books, u will find how to solve the NS equations with not so high-resolution schemes...

For higher resolutions, like an spectral solver, I think the FEM method is better.

And I think also that the NS equations must be solved by an eliptic solver not an Hyperbolic, due to the nature of the fisics involved, m I wrong???

Good luck...
  Reply With Quote

Old   October 11, 2007, 07:45
Default Re: How to use high-resolution FVM to NS equation?
  #3
Salvatore
Guest
 
Posts: n/a
The NS equations for viscous fluid flow are parabolic problems. I suggest you don't use hyperbolic approach for these kind of problems. It's my opinion to use the correct discretization form which may differ depending from the kind of problem. Maybe useful to read paper about the problem you want solve. I used, and sometimes use, the Tannahill - Anderson - Pletcher Computational Fluid Mechanics and Heat Transfer book during my studies and my work. I think it's a good reference point for cfd analysis. Bye Salvatore
  Reply With Quote

Old   October 11, 2007, 20:33
Default Re: How to use high-resolution FVM to NS equation?
  #4
ag
Guest
 
Posts: n/a
The focus of the books you mentioned is on hyperbolic problems because the advective portion of the NS equations is hyperbolic. The ideas can be carried over directly to the solution of the Euler equations (which are hyperbolic) by applying the high-resolution discretizations to the advective terms. To include the viscous terms, use a central difference approach (structured grids) or use an appropriate approximation to the viscous terms on unstructured grids. This is a fairly standard procedure in constructing a CFD solver.
  Reply With Quote

Old   October 11, 2007, 22:21
Default Re: How to use high-resolution FVM to NS equation?
  #5
billpeace
Guest
 
Posts: n/a
The method you mentioned is motivated,and i wang to know the detail of implement this solver to practice problem? Ask for some book or paper where this method has introduced or used?

  Reply With Quote

Old   October 11, 2007, 22:41
Default Re: How to use high-resolution FVM to NS equation?
  #6
billpeace
Guest
 
Posts: n/a
Thanks Could you give some code about eliptic solver on NS equations?
  Reply With Quote

Old   October 12, 2007, 09:16
Default Re: How to use high-resolution FVM to NS equation?
  #7
ag
Guest
 
Posts: n/a
Any decent entry-level CFD text will typically break the algorithm development into two pieces - one piece for the advection (which is where the Riemann-type solvers come into play) and one piece for the diffusive flux. Look at the texts by Anderson, Tannehill, and Pletcher, or Ferziger and Peric, or Hoffman and Chiang, or Hirsch.
  Reply With Quote

Old   October 13, 2007, 13:06
Default Re: How to use high-resolution FVM to NS equation?
  #8
Newton
Guest
 
Posts: n/a
Hi, if u look in the net, u will find some....

The code I'm using is based on the OPENFoam... it is a very good starting point....

If any problem, plz ask...
  Reply With Quote

Old   October 18, 2007, 23:22
Default Re: How to use high-resolution FVM to NS equation?
  #9
billpeace
Guest
 
Posts: n/a
It is very hard to understand OpenFOAM, maybe for me.Can you offer some code writed by fortran, solve compressible NS equation
  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
high resolution scheme az_f CFX 0 November 24, 2010 23:52
how to understand high resolution scheme and high order scheme iilw1314 Main CFD Forum 3 September 30, 2010 10:43
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
High Resolution Scheme Vinod Dhiman Main CFD Forum 0 August 2, 2005 05:55
resolution of equation of Shrodeinger hichem Main CFD Forum 0 October 7, 2004 05:20


All times are GMT -4. The time now is 08:25.