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multiphase UDF, variables for phase velocities

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Old   March 22, 2006, 06:28
Default multiphase UDF, variables for phase velocities
  #1
Kerem
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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
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Old   March 23, 2006, 22:03
Default Re: multiphase UDF, variables for phase velocities
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onlooker
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RTFM
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Old   March 23, 2006, 22:13
Default Re: multiphase UDF, variables for phase velocities
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onlooker
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ok, I take that back.
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Old   March 27, 2006, 05:00
Default Re: multiphase UDF, variables for phase velocities
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Kerem
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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
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Old   March 27, 2006, 08:20
Default Re: multiphase UDF, variables for phase velocities
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Kerem
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oops,

forgot to mention the definition of the sub thread:

thread_s = THREAD_SUB_THREAD(thread, phase_identifier_solid)
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