2D von neumann

soes · March 22, 2016, 13:05

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, 15:27

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, 16:56

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.

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March 23, 2016, 15:27		#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, 16:56		#3
soes Member Soyol Join Date: Jun 2014 Location: Berkeley, CA Posts: 39 Rep Power: 11	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.