smooth interface with VOF models

ndabir · June 21, 2012, 19:58

Hi,

I am simulating bubble collapse close to a wall. when I want to patch pressure and temperature to the inside of bubble, I realize that the bubble interface is sharp (although I have a fine mesh). Does anybody know what can I do to smooth the interface? I read somewhere in other posts that I can use TUI command: rpsetvar 'patch/vof? #t

I don't know where to use this command. Can anybody help me please.

sicfred · June 25, 2012, 05:56

Hi,

Are you using the vof explicit method with geo-recronstuction?, because, if you are using this method, i think your mesh is not fine enough.

ndabir · July 6, 2012, 13:35

Yes I am using that method. But I have even refined the mesh near and inside the bubble (around 0.5 million nodes) but still can get smooth pressure contours. any idea how fine should I make the mesh?

June 21, 2012, 19:58	smooth interface with VOF models	#1
ndabir Senior Member navid Join Date: Jan 2010 Posts: 110 Rep Power: 16	Hi, I am simulating bubble collapse close to a wall. when I want to patch pressure and temperature to the inside of bubble, I realize that the bubble interface is sharp (although I have a fine mesh). Does anybody know what can I do to smooth the interface? I read somewhere in other posts that I can use TUI command: rpsetvar 'patch/vof? #t I don't know where to use this command. Can anybody help me please.

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June 25, 2012, 05:56		#2
sicfred New Member Elias Paez Join Date: Nov 2011 Location: Madrid Posts: 25 Rep Power: 15	Hi, Are you using the vof explicit method with geo-recronstuction?, because, if you are using this method, i think your mesh is not fine enough.

July 6, 2012, 13:35		#3
ndabir Senior Member navid Join Date: Jan 2010 Posts: 110 Rep Power: 16	Yes I am using that method. But I have even refined the mesh near and inside the bubble (around 0.5 million nodes) but still can get smooth pressure contours. any idea how fine should I make the mesh?