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Old   January 28, 2010, 13:47
Default Contour Problems
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Riccardo
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Hi everbody, sorry for my bad english.
I'm a student working for his final degree work.

With Fluent, I'm simulating an unsteady flow around a pitching airfoil. I use a circolary moving meshed area inserted at the center of a rectangular and fixed meshed area. Inside the first of two there is the airfoil.
I maked both the meshed area using Gambit and then I make the union using fluent (grid-->zone-->append file case .----&---- define-->grid interface------and completing with usually options).

When I plot the vectors there aren't appearantly problems but, when I use the contour's plotting tools I obtain an awful graph. Infact. in these graphics, the circular interface behavior seems like a wall, and low and high pressure are visible in unexpecting zones. Similar to this appear a velocity magnitude graph: in this case a zero - velocity contour is showed in the interface surface. I don't understand!!!

I tryed a lot of time to solve this problem, but now I ask you to help me.

Thanks!
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Old   January 29, 2010, 07:22
Default Tgrid
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Riccardo
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Hi, I found the mistake by myself.
Using Tgrid, the mistakes disappear!!
Thanks though.
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