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Have you use the axis boundary?

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Old   April 25, 2003, 06:50
Default Have you use the axis boundary?
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A circular tube is a well axis-symetric geometry,have you ever mesh a circular tube by taking the axis line as axis boudary type? in gambit,can you make it? or just make a 2D mesh and specify one side as axis..?
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Old   April 25, 2003, 07:15
Default abt axis
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specify the axis boundary in a 2d geometry
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Old   April 25, 2003, 07:20
Default Re: abt axis
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but how to form the 3D geometry?(my physical model is 3D,a circular tube)?
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Old   April 26, 2003, 04:57
Default Re: abt axis
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Hello, I can't catch your exact meaning. I think a circular tube can be modeled by using a 2D mesh if you are sure that the flow in tube is axisymmetric. You can choose a 2D geometry as your model and just set one of the boundary as axis. And in fluent,go into define----->solver,choose axisymmetric under space.

If you want to create a 2D mesh in gambit firstly and then form the 3D geometry by revolving it, It seems unrealized.

As a whole, I choose a 2D geometry to model an axisymmetric one and a 3D geometry to un-axisymmetric.
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