bubbel collapse in cavitation

July 5, 2006, 06:01

please help me!! excuse my anglish it's not very correct i need to know how to define the boundary condtion between vap(bubbel) and liq intrface for observe the phenomen of bubbel collapse,and how to change pressure in liq/vap phases thanck's so much

July 7, 2006, 01:56

Hi!

YOu can to this with patch command. First innitialise your domain. Then go to Adapt-Region and define your buble region here. go back to Solve-Initialize-Patch and patch the values for volume fraction and pressure to the bubble region. So far so good, but I doubt that you will be able to see the bubble collapse...If you suceed please tell me how..

GOOD LUCK MATEUS

ndabir · July 6, 2012, 13:44

Hi,

Did you solve the bubble collapse problem? I have the same problem and I can't see the bubble collapse. can you help me please. I get very low pressures(like 1 Pa) in my results. any idea? what was the tricks you used to solve the problem?

July 5, 2006, 06:01	bubbel collapse in cavitation	#1
Aniss Guest Posts: n/a	please help me!! excuse my anglish it's not very correct i need to know how to define the boundary condtion between vap(bubbel) and liq intrface for observe the phenomen of bubbel collapse,and how to change pressure in liq/vap phases thanck's so much

July 7, 2006, 01:56	Re: bubbel collapse in cavitation	#2
mateus Guest Posts: n/a	Hi! YOu can to this with patch command. First innitialise your domain. Then go to Adapt-Region and define your buble region here. go back to Solve-Initialize-Patch and patch the values for volume fraction and pressure to the bubble region. So far so good, but I doubt that you will be able to see the bubble collapse...If you suceed please tell me how.. GOOD LUCK MATEUS

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July 6, 2012, 13:44		#3
ndabir Senior Member navid Join Date: Jan 2010 Posts: 110 Rep Power: 16	Hi, Did you solve the bubble collapse problem? I have the same problem and I can't see the bubble collapse. can you help me please. I get very low pressures(like 1 Pa) in my results. any idea? what was the tricks you used to solve the problem?