effect of variable meshing

rakadit · July 14, 2011, 04:12

Dear All!

I am modeling flow in a channel under gravity.
As compared to a uniform mesh ,in case of a variable mesh(very fine to coarse),I am getting quite different values of velocity of flow.

anybody ,please suggest ?

regards,

jchawner · July 16, 2011, 17:05

Rakesh:

You don't say whether your uniform mesh was uniformly fine or uniformly coarse. If the latter, the solution was bad compared to the solution on the variable mesh.

Just a thought.

rakadit · July 18, 2011, 02:56

Mr. John,
Thank you very much for your good suggestion.

regards,

Rakesh

July 14, 2011, 04:12	effect of variable meshing	#1
rakadit Member Rakesh Join Date: May 2011 Posts: 33 Rep Power: 15	Dear All! I am modeling flow in a channel under gravity. As compared to a uniform mesh ,in case of a variable mesh(very fine to coarse),I am getting quite different values of velocity of flow. anybody ,please suggest ? regards,

July 16, 2011, 17:05		#2
jchawner Senior Member John Chawner Join Date: Mar 2009 Location: Fort Worth, Texas, USA Posts: 275 Rep Power: 18	Rakesh: You don't say whether your uniform mesh was uniformly fine or uniformly coarse. If the latter, the solution was bad compared to the solution on the variable mesh. Just a thought. __________________ John Chawner / jrc@pointwise.com / www.pointwise.com Blog: http://blog.pointwise.com/ on Twitter: @jchawner

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July 18, 2011, 02:56		#3
rakadit Member Rakesh Join Date: May 2011 Posts: 33 Rep Power: 15	Mr. John, Thank you very much for your good suggestion. regards, Rakesh