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Old   September 29, 2009, 14:13
Default coalescence
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dear users does anyone work on coalescence of droplets in gas/liquid flows
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Old   October 6, 2009, 11:54
Default what is your fluid system?
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Hi,
I have experience in modeling coalescence using VOF methods - what are you looking at?

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dear users does anyone work on coalescence of droplets in gas/liquid flows
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Old   October 6, 2009, 12:13
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Hi,

I am quite new in CFD. I have fluent at the moment and am going through the tutorials to get acquaintance to deal with coalescence in gas/liquid flows. I am really confused about if I should start from fluent or cfx. I sometimes see people using, udf, fortran, etc. Will I need these sort things? Can you give me some brief clues. I appreciate your message. thanks
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Old   October 6, 2009, 13:10
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Fluent 6.3 has good interface capturing schemes and good numerics...will advise to start there. No need of any udf or coding as yet (no mass transfer etc i suppose so far). Using coals related reference - build a model and try repeating calculations or validating experiments..should give you a lot of confidence there...btw, try to keep the model and domain simple and not too complicated. For example, a broken dam problem is a good start !

You can then learn how mesh refinement/time stepping/solver controls etc can change results and you can use this information for more complicated cases.

CFdtoy

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Originally Posted by marry View Post
Hi,

I am quite new in CFD. I have fluent at the moment and am going through the tutorials to get acquaintance to deal with coalescence in gas/liquid flows. I am really confused about if I should start from fluent or cfx. I sometimes see people using, udf, fortran, etc. Will I need these sort things? Can you give me some brief clues. I appreciate your message. thanks
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Old   October 6, 2009, 13:59
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Oh, thank you very much, you gave me a great courage. I was reading people's messages and I was little scared of dealing with cfd..
I just need two more help please. First, can you tell me a reference for such works on coals? A broken dam, where can I find it? is it a tutorial?

thanks

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