# multiphase UDF, variables for phase velocities

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 March 22, 2006, 06:28 multiphase UDF, variables for phase velocities #1 Kerem Guest   Posts: n/a hi all, i want to use the phase velocities at boundary surfaces in my udf. for the single phase flow, the variables are F_U(f,t), F_V(f,t), F_W(f,t) but i couldnīt find any information about the variables corresonding to the different phase velocities in multiphase flow. i am using Eulerian Model. thanks for any help concerning. kerem

 March 23, 2006, 22:03 Re: multiphase UDF, variables for phase velocities #2 onlooker Guest   Posts: n/a RTFM

 March 23, 2006, 22:13 Re: multiphase UDF, variables for phase velocities #3 onlooker Guest   Posts: n/a ok, I take that back.

 March 27, 2006, 05:00 Re: multiphase UDF, variables for phase velocities #4 Kerem Guest   Posts: n/a i actually found the answer in an example; the phase velocities of such form are used for an Eulerian two phase (gas-solid) model: vel_gas_x = C_U(cell, thread_g) vel_gas_y = C_V(cell, thread_g) vel_sld_x = C_U(cell, thread_s) vel_sld_y = C_V(cell, thread_s) and likewise -i guess- for the face velocities. i hope this helps you too.. kerem

 March 27, 2006, 08:20 Re: multiphase UDF, variables for phase velocities #5 Kerem Guest   Posts: n/a oops, forgot to mention the definition of the sub thread: thread_s = THREAD_SUB_THREAD(thread, phase_identifier_solid)

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