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fully developed boundary condition
Posted Mar 28, 2012, 2:31 a.m. EDT 1 Reply
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Hello,
In my model, a fully developed pipe flow is required to be defined at the inlet boundary. I simulated a flow in a long pipe of the same height of the inlet boundary then I used linear coupling to define the flow profile of the outlet long pipe as the inlet B.C for my model. I used 2D axisymmetric model for the pipe flow, but the result is unsatisfactory.
PS I model the same situation but for a channel flow using 2D model and it worked perfect.
Any suggestions and comments are really appreciated,
Thanks in advance.
In my model, a fully developed pipe flow is required to be defined at the inlet boundary. I simulated a flow in a long pipe of the same height of the inlet boundary then I used linear coupling to define the flow profile of the outlet long pipe as the inlet B.C for my model. I used 2D axisymmetric model for the pipe flow, but the result is unsatisfactory.
PS I model the same situation but for a channel flow using 2D model and it worked perfect.
Any suggestions and comments are really appreciated,
Thanks in advance.
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1 Reply Last Post Mar 31, 2012, 5:54 a.m. EDT
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Posted:
1 decade ago
Unfortunately it was not working for a trivial error as when i coupled the two models i defined the inlet velocity field with the u velocity component, and i didn't realize that its an axisymmetric model i.e. the u component is in the radial direction velocity component.