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July 26, 2001, 03:15 |
BC at 2-phase interface ?
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#1 |
Guest
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Hi all. In two-phase flow, (I wanna use modified VOF scheme such like a SURFER, or HRIC ....)
doesn't it need any pressure or velocity boundary conditions at interface ? (It just depends on discretization scheme ?) reply plz... |
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July 26, 2001, 05:32 |
Re: BC at 2-phase interface ?
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#2 |
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You are right, and in SURFER, you have a term which accounts for the capillary force which is realized by a volume fraction.
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July 26, 2001, 11:19 |
Re: BC at 2-phase interface ?
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#3 |
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The interfacial boundary conditions are taken care of within the one-Fluid formulation, with some simplifications of course..
Read: Kataoka (1986) Local Instant Formulation of 2-phase flow. International Journal o Multiphase flow v12(5)pp745-768 A more of an engineering derivation (from a slightly different approach) can be found in a thesis of W. Sabisch from Karlsruhe. I think their was a paper by him also at the ICMF2001 conference. I would suggest trying to derive the equations from scratch to really understand where they come from and what exactly their limitations are... Happy VOFing... |
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August 27, 2001, 06:54 |
spray evaporation
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#4 |
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Hi I developed CFD code for spray evaporation and mixing in cylandrical duct . therefor I need experimental data of spray evaporation in duct for validated my coed ,if you have such data please send for me . thank's
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