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UDF for VOF interface moving with velocity V

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Old   June 6, 2006, 04:22
Default UDF for VOF interface moving with velocity V
  #1
Johann
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Hi all Fleunt suers , please can some body help me on the case of moving interface between 2 phases on VOF model , I need to specify the deplacement of the inteface at velocity V (mm/s) using udf .. (the depalcment is perpendicular to this interface)

thanks in advance Johann

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Old   June 9, 2006, 11:15
Default Re: UDF for VOF interface moving with velocity V
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shanti
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Hi Johann

At the interface you will have the volume fraction in the range of 0-1. So you can write a loop and say for those cells have a velocity in the y-direction .

Hope it helps Shanti
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Old   June 10, 2006, 04:27
Default Re: UDF for VOF interface moving with velocity V
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Johann
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Hi Shanti, thanks for your reply , But I still have prblem , what kind of macro should i use to set a velocity to to the interfac cells (0-1 volume fraction ) .Should I use A momentum source (DEFINE_SOURCE) ? please help me thanks Johann
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Old   June 10, 2006, 04:42
Default Re: UDF for VOF interface moving with velocity V
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Johann
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Dear Shanti...please can you email me some example from Fluentusers.com related to that prblem and to the volumetric heat source variation with time .. here is my email adress amine_137@hotmail.fr (unfortunately I dont have login password ) thanks
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