# multiphase

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 February 26, 2007, 06:15 multiphase #1 chak Guest   Posts: n/a 2d model outlet 10000000000001 10000000000001 43200000000001 43320000000001----wall(q=0) 12000000000001 10000000000001 10000000000001 10000000000001 10000000000001 i(v_inlet) hi, iam using above 2d model to study the heat transfer coeffiecient over a 12221 arc that represent the tube and at the inlet 'i' a fluid is passing with upward velociy and the right 1's represents wall and zeros represents where fluid is passing and iam giving constant heat flux at 4411. iam using multiphase model,mixture, k-e and i got better results(h-heat transfer coefficient) for lower part tube with experimental. But iam not getting for upper part of the tube. to overcome this I have tried taking the whole model into two halve and using upper half where i am not good result i tried with eulerian model, and passing the values through profile of whole model with previous values of the mixture model at that region. would u suggest me is it better way of doing it ..or there is any way to do it. thank you, please let me know ifany one knows abt it.

 February 26, 2007, 06:39 Re: multiphase #2 chak Guest   Posts: n/a 2d model ----------------------------------------------------------------------------------------------------------------------------- -10000000000001 --------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------10000000000001 --------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------43200000000001--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------43320000000001----wall(q=0) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------12000000000001---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------10000000000001---------------------------------------------- i(v_inlet) hi, iam using above 2d model to study the heat transfer coeffiecient over a 12221 arc that represent the tube and at the inlet 'i' a fluid is passing with upward velociy and the right 1's represents wall and zeros represents where fluid is passing and iam giving constant heat flux at 4411. iam using multiphase model,mixture, k-e and i got better results(h-heat transfer coefficient) for lower part tube with experimental. But iam not getting for upper part of the tube. to overcome this I have tried taking the whole model into two halve and using upper half where i am not good result i tried with eulerian model, and passing the values through profile of whole model with previous values of the mixture model at that region. would u suggest me is it better way of doing it ..or there is any way to do it. thank you, please let me know ifany one knows abt it.

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