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UDF for VOF Modeling

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Old   June 19, 2019, 04:19
Exclamation UDF for VOF Modeling
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Yunus Emre
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Hey dear guys. I need your help.I am doing inner flow analysis.


Always I do this analysis in CFX . But I want to test FLUENT's power. How different are the solution times ? etc...


This component is an injector. I have a lot of expressions when using CFX. There are an example below picture. My purpose is doing same analysis in FLUENT.


I need these expressions to control TAU angle ksi angle.. etc.. I should see TAU Angle values end of the analysis on postprocess.

I am using VOF model on FLUENT but you know VOF model has some limitations. So I don't acquire velocity components each phase. Such as fuel superficial velocity X Y and Z.


I guess I have to write UDF to acquire these components. And then I will use this component for aquiring TAU and ksi angle But I don't know writing UDF codes.


this ksi angle is below picture. . My whole purpose is to post process this.

Can you help me.


Then I will Vof to DPM analysis for spray. My one of purposes is to use VOF to DPM model on FLUENT. for detailed information https://www.ansys.com/blog/fluent-19-speeds-cfd-spray-simulations
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Old   June 20, 2019, 01:43
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Alexander
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sinusoidal rotation UDF

best regards
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Old   September 13, 2019, 10:08
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cheng qiang
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Hi metafizix,


Do you have the tutorial of the Fluent VOF-to-DPM model. I can not find the tutorial from the Ansys customer portal. Please send it me if you have. My email address is: qiang.cheng@aalto.fi. Thanks in advance.

Best Regards,
Jonny
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