Differencing Scheme MARS

michael · August 10, 2006, 04:09

Hello,

which Differencing Scheme in OpenFOAM is equal to the MARS (second order) Diff Scheme in Star-CD?

thanks for your help!

regards

Michael

hjasak · August 10, 2006, 10:51

Not implemented in OpenFOAM - basically because (in my opinion) it's rubbish.

There is a whole bunch of second-order schemes but no limited gradient-extrapolated one like Mars. If you want to do it yourself, take something like SFCD and instead of using cell centre values in the limiter, do a one-sided extrapolation to the face using the cell gradient.

Hrv

August 10, 2006, 04:09	Hello, which Differencing S	#1
michael New Member Michael R. Join Date: Mar 2009 Posts: 12 Rep Power: 17	Hello, which Differencing Scheme in OpenFOAM is equal to the MARS (second order) Diff Scheme in Star-CD? thanks for your help! regards Michael

August 10, 2006, 10:51	Not implemented in OpenFOAM -	#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	Not implemented in OpenFOAM - basically because (in my opinion) it's rubbish. There is a whole bunch of second-order schemes but no limited gradient-extrapolated one like Mars. If you want to do it yourself, take something like SFCD and instead of using cell centre values in the limiter, do a one-sided extrapolation to the face using the cell gradient. Hrv sushant and Amit Mathur like this. __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Convergence in MARS scheme	shiv	Siemens	10	January 31, 2008 21:27
Help: MARS scheme does not converge!	Jimmy Fox	Siemens	6	August 8, 2007 10:08
MARS differencing scheme	Bart	Siemens	4	January 27, 2005 09:43
MARS Scheme	Apurva	Main CFD Forum	4	May 28, 2004 10:41
MARS discretization scheme	raymond	Siemens	3	February 1, 2002 05:33