# multiphase in fluent 5.5

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 November 2, 2001, 17:28 multiphase in fluent 5.5 #1 fawzy Guest   Posts: n/a I m using the algebraic slip mixture model in stirred tank and i want to use the secondary phase cell velocity in some UDF. so my question it's true to use this name (argument): C_U_S(cell, thread) for the x secondary phase cell velocity ? thanks

 November 5, 2001, 04:42 Re: multiphase in fluent 5.5 #2 Isa Guest   Posts: n/a Hi! As a matter of interest, what is your volume fraction of solids?

 November 5, 2001, 13:34 Re: multiphase in fluent 5.5 #3 fawzy Guest   Posts: n/a Hi Isa I don't use dispersed solid phase. I use the ASMM for gas sparging in mixed tank. So it is no limitation for the gas volume fraction as gas density << primary fluid density. See always "On mixture model for multiphase flow", Manninen & Taivassalo, VTT energy, VTT publications 288. available via the web in pdf format (67 pages). Have you any idea about my question ? thanks Best regrads fawzy

 November 8, 2001, 12:06 secondary phase velocity ??? with ASMM #4 fawzy Guest   Posts: n/a I m using the algebraic slip mixture model in stirred tank and i want to use the secondary phase cell velocity in some UDF. How can i access to its name (argument)

 November 12, 2001, 06:46 Re: secondary phase velocity ??? with ASMM #5 Isa Guest   Posts: n/a Hi! You didn't answer my querstion before on the dispersed phase volume fraction. I know you said that you are using ASMM, but my question was relating to validity of the use of ASM. To be able to use ASm with any accuracy at all, your solids (disperse) VF will have to be very low (< 1%). What is the physical disperse VF of solids that you have?

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