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April 19, 2010, 07:59 |
boundary condition for compressor
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#1 |
New Member
Krunal
Join Date: Mar 2010
Posts: 11
Rep Power: 16 |
hii to all.
I am doing work on FLUENT to analyze compressor with ideal gas. but every time i am getting reversed flow or FLUENT having fatal error. Boundary conditions I am using are: Inlet : Pressure inlet Outlet : pressure outlet Solver : Density based (steady) Hub,Shroud and side walls : Rotating (Relative to moving ref. frame; rpm=0) Fluid : moving ref. frame (rpm = 5000) my actual rpm is 40000 but i want to converge it first at 5000. i am not giving any pressure or temp values at Outlet,as it should calculate on its own.Is it right?? need urgent reply... Thank you. |
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April 19, 2010, 12:55 |
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#2 |
Senior Member
Chris
Join Date: Jul 2009
Location: Ohio, USA
Posts: 169
Rep Power: 16 |
But if there is reversed flow, then FLUENT uses the backflow values that you set. If those values aren't realistic, it could blow out your solution.
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April 20, 2010, 01:57 |
boundary condition for compressor
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#3 |
New Member
Krunal
Join Date: Mar 2010
Posts: 11
Rep Power: 16 |
my outlet static pressure is 3.2 atm and total rpm is 40000.
if i am giving this values directly then after few iterations it shows FULENT has fatal error.... so how should i go for the solution..?? thank u.. |
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April 20, 2010, 14:56 |
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#4 |
Senior Member
Chris
Join Date: Jul 2009
Location: Ohio, USA
Posts: 169
Rep Power: 16 |
What does it say besides "Fatal Error"? Segmentation, Access_Violation? Are you using a UDF?
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