Finned Pipe Trouble
Hi, I need to solve a trouble with cfx used to simulate an example of "fin pipe" as in figure below, where the lower face of pipe trasmit a heat power and where ther is a flow of water.
The blue zone is a water domain. If each single fin separates blue zone into multi-parts domain, as we see in figure, http://img18.imageshack.us/img18/6195/971tmb.jpg the solver fails imediatly and providing this error message: An error has occurred in cfx5solve: | | | | Error interpolating results onto the new mesh: C:\Program | | Files\Ansys Inc\v120\CFX\bin\winnt-amd64\solver-hpmpi.exe exited | | with return code 1. Otherwise if the fins are more little then pipe's height (as second figure) , domain is considered as a single part, and the solver correctly runs. http://img20.imageshack.us/img20/377/97112.jpg Could you explain me the reason of that mistake? ps for both geometry i have defined in cfx-pre the same elements:
Thanks |
For the case with separate fluid domains, put a separate inlet and outlet boundary condition on each face. I am not sure that's the problem but its worth a try.
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yes, with that solution, i'm sure working fine, but i think that are another way (more quick) to set cfx-pre...don't u think so?
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On the geometry you show it will only take a few minutes to set it up as I describe. How much quicker do you want? Are you going to spend days trying to speed the setup up by 5 minutes?
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yes yes, u are right, it'was only my curiosity
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Simmilar problem
Dear sir,
I am facing same problem for analysis of fluid flow with insert like for modeling i prepared one cylinder then i inserted a thin plate as you deed and then i cut that geometry.. it generates to parts for inlet i select to portions same way for outlet 2 portions and outer wall... means by putting this plate i am splitting the flow in two domains.... i am getting the same error as you are... return code 1. please guide me what to do... |
as ghorrocks said me, try to create 2 equal boundary condition for Inlet and the same for out boundary condition. wait your news
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Or to put it more clearly a boundary condition should not span multiple domains. Boundary conditions which span multiple parts of the same domain which are not connected (eg two fluid regions in one fluid domain with a solid region in between) should also have separate boundary conditions on each region.
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solution
Yes, thank you sir. i spend hours to have solution and i got it..
thanks a lot |
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