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

Project Help--Discontinuous Galerkin (FV) for Compressible Euler Eqs

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

LinkBack Thread Tools Display Modes
Old   March 25, 2013, 20:43
Question Project Help--Discontinuous Galerkin (FV) for Compressible Euler Eqs
New Member
Join Date: Jan 2013
Location: North Carolina
Posts: 5
Rep Power: 4
Spacegirl1923 is on a distinguished road
Hello, I am sort of new to this forum so my apologies in advance if I happen to violate some unspoken cfd forum rule...

I am currently working on a project for a class in which I must write a code to solve the 2-D Euler equations on an unstructured grid using an explicit 2-stage Runge-Kutta temporal discretization method, and a flux vector splitting scheme of my choosing (I am thinking van Leer for simplicity's sake). I think currently most of my questions are going from conceptual to application (ie discretizing the problem in a code) and I was hoping to get some help from the ether on such matters.

For starters does anyone have a link to a site or paper or reliable source that explicitly states the flux vectors (+ and -) F and E? Or rather does anyone have the vector forms for these I would like to verify what I am doing it correctly for debugging purposes.

Secondly, when going from P_{0} to P_{1} DG how is the Runge-Kutta time stepping scheme modified (ie addition eqations, flux calculations change etc) currently I have the formula as

U_{0}=U^{n} - \frac{1}{2} \DeltaT R(U^{n}) 1st stage
U_{n+1}=U^{n} - \DeltaT R(U^{n}_{0} 2nd stage

where U = [\rho,\rhou,\rhov,\rhoE]^{T}

Thanks for any help or direction that is offered!!
Spacegirl1923 is offline   Reply With Quote


discontinous galerkin, euler equations, finite volume

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
Weak and strong form of Discontinuous Galerkin method aferrero Main CFD Forum 0 June 14, 2012 11:49
Discontinuous Galerkin method fo 1D Navier Stokes SKLee Main CFD Forum 0 October 27, 2011 13:45
Runge Kutta Discontinuous Galerkin procedure? Ameya J Main CFD Forum 6 July 29, 2011 05:56
Discontinuous Galerkin schemes -- fortran source code diedro Main CFD Forum 3 March 12, 2011 11:20
Discontinuous Galerkin finite element method Tony Main CFD Forum 0 May 27, 2003 18:48

All times are GMT -4. The time now is 18:20.