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values of k and e in bubbly and turbulent flows

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Old   January 28, 2006, 03:19
Default values of k and e in bubbly and turbulent flows
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zack
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i am new to multiphase simulations. i am having problems in estimating k & e values for bubbly flows through pipes particularly at inlet and outlet. are there any theoretical or empirical correlations available?? if so plz give me the reference. hope tht somebody bails me out of this!!
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Old   January 28, 2006, 04:02
Default Re: values of k and e in bubbly and turbulent flow
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kharicha
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This is a 1 000 000 $ question !! How big are your bubbles compared to the calculation grid size? What kind of multiphase model are you using ?

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Old   January 28, 2006, 07:41
Default Re: values of k and e in bubbly and turbulent flow
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zack
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thanx for ur response. i am using eularian 2 fluid, and ASMM model for bubble column simulations. bubble diameter is 5 mm. the height of column is 1mtr with a dia of 19cm. the grid size i am using is 5 mm(radial)* 3.3mm(longitudinal). should i refine my grid size further??
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