2D von neumann

soes · March 22, 2016, 14:05

Hello,

I want to find either CFL condition or do 2d von neumann analysis on my disretized equation as below, but I could not find any document that I can handle 3 steps in time and 2d in space simultaneously.
Below you see my original equation, and how I discretized it and solved it numerically

Eric_Pomraning · March 23, 2016, 16:27

This looks like a general CFD issue not a CONVERGE issue. Are you trying to solve the partial differential equations in CONVERGE?

soes · March 23, 2016, 17:56

you are right maybe I did not choose a proper category for my question. I want to either assess my scheme with respect to CFL or von neumann. I did some for von neumann but it gets a lot complicated.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
UDF von neumann	nadesan	Fluent UDF and Scheme Programming	0	October 16, 2012 01:56
UDF von neumann	nadesan	Fluent UDF and Scheme Programming	0	October 15, 2012 08:22
stress analysis -Von Mises Theory	watashiwa	OpenFOAM	7	October 15, 2010 16:43
Lax method stability via von neumann analysis	morteza08	Main CFD Forum	1	June 5, 2010 13:43
wmake compiling Problem with OF1.5	openTom	OpenFOAM Installation	4	May 3, 2009 15:44

March 23, 2016, 16:27		#2
Eric_Pomraning New Member Eric Pomraning Join Date: Mar 2016 Posts: 1 Rep Power: 0	This looks like a general CFD issue not a CONVERGE issue. Are you trying to solve the partial differential equations in CONVERGE?

March 23, 2016, 17:56		#3
soes Member Soyol Join Date: Jun 2014 Location: Berkeley, CA Posts: 39 Rep Power: 12	you are right maybe I did not choose a proper category for my question. I want to either assess my scheme with respect to CFL or von neumann. I did some for von neumann but it gets a lot complicated.