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sairamesh April 7, 2005 11:30

moving boundary(normal to surface)
sir i m doing a problem in which one boundary has a velocity normal to its surface is there any possibility of giving such a condition in fluent if possible please tell me how to model this type of boundary condition ramesh

Luca April 7, 2005 11:34

Re: moving boundary(normal to surface)
Unfortunately no. I had the same problem. You can only set a tangential velocity ot use the dynamic mesh. Luca

sairamesh April 7, 2005 11:41

Re: moving boundary(normal to surface)
can you send me your problem

Luca April 7, 2005 16:25

Re: moving boundary(normal to surface)
Hi wanted to use transpiration velocity for aeroelastic analysis of a wing. Fluent ignores the normal component velocity and accepts only the tangential one. Maybe you could try using the velocity inlet profile instead of a wall but you shuld make sure it works well. This condition may work only with the segregated solver if you want to model an inlet or outlet velocity (see the guide). Luca

Anatoly April 9, 2005 01:49

Re: moving boundary(normal to surface)
Greetings! I have some experience of modelling of free vertical fluctuations of the Vertical cylinder on border of the unit of phases water - air. The bottom and top end faces of the cylinder thus move on a normal on distance of m from the cylinder. I think, that it approximately that interests you. Can state the problem(task) on mine more in detail Anatoly.

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