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Old   October 30, 2003, 07:39
Default Symmetry and boundary conditions
  #1
eric
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Hi,

I have values for mass flow rate for flow in a pipe, from which I calculate the inlet velocity.

I'm using symmetry, to reduce computation time, therefore i have half the domain of the pipe.

My question is - do I apply the full, calculated, inlet velocity as the boundary condition or do I halve the inlet velocity, because of the half pipe, and then double the values of the results?

Thanks in advance,

Eric.
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Old   October 30, 2003, 07:49
Default Re: Symmetry and boundary conditions
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David
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Hi,

no reason to half the inlet velocity, as you are using a symmetry and indicated it in your BCs.

cheers

David
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Old   October 30, 2003, 10:52
Default Re: Symmetry and boundary conditions
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ap
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I agree with David.

You have to specify the real velocity inlet.
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Old   August 30, 2012, 09:09
Default boundary condition (symmetry vs periodic doubt)
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hhh
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Dear friends,
i am doing 3D wing analysis, i have doubt on boundary conditions in fluent ie both symmetry and periodic, anybody have the answer please let me know briefly,for what kind of purpose to use symmetry & periodic boundary conditions, please tell any example with problem.
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