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Old   November 5, 2007, 11:19
Default Transient boundary conditions
  #1
Yannick
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Hello everybody,

I'm using fluent 6.2.16 and i have to simulate the inlet manifold of an engine. I'd like to set transient boundary of pressure at the outlet but I understand nothing to the fluent help.

Can someone help me?
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Old   November 5, 2007, 16:02
Default Re: Transient boundary conditions
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Jason
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Do you mean your B.C at the outle varying with the Time? If it's tru I guss you have to write a UDF to set your B.C correctly.
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Old   November 5, 2007, 16:03
Default Re: Transient boundary conditions
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Jason
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Do you mean your B.C at the outle varying with the Time? If it's true I guess you have to write a UDF to set your B.C correctly.
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Old   November 5, 2007, 17:07
Default Re: Transient boundary conditions
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Yannick
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yes, they are varying with the time. I heard about UDF, but I don't know how to do. Where can I find some examples?
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Old   November 6, 2007, 06:08
Default Re: Transient boundary conditions
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Yannick
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What I need to do is to vary from a wall type condition to a pressure outlet type condition during a time and I don't know what to write in the UDF...
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Old   November 6, 2007, 08:28
Default Re: Transient boundary conditions
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Nia
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Yau can actually write it within UDFs and you need to write a simple DEFINE_PROFILE macro. You can also fine some example through UDF manual.
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Old   November 6, 2007, 08:47
Default Re: Transient boundary conditions
  #7
Yannick
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Ok, Thank you. I'll try to do this...
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