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Fluent Reversed Flow for a cascade simulation |
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December 27, 2012, 11:51 |
Fluent Reversed Flow for a cascade simulation
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#1 |
New Member
Manu Kamin
Join Date: Nov 2011
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Hey guys,
I need to study flow properties for a particular cascade that I've designed. I tried out first with the simplest conditions using ANSYS FLUENT. My fluid model in inviscid, incompressible(Euler) and subsonic. It is a compressor cascade configuration. Inlet condition is given to be velocity inlet and exit as outflow. The top and bottom surfaces are periodic (translational). I have attached an image of my geometry . For this simple configuration, Fluent says there's reverse flow occuring on outlet face. Would anyone happen to know what could be the possible reason? |
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December 28, 2012, 12:20 |
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#2 |
Senior Member
SSL
Join Date: Oct 2012
Posts: 226
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You may need to add a free channel to outlet.
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January 24, 2013, 23:15 |
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#3 |
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jiaqi wang
Join Date: Jan 2013
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January 25, 2013, 01:18 |
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#4 |
Senior Member
SSL
Join Date: Oct 2012
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January 25, 2013, 01:20 |
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#5 | |
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jiaqi wang
Join Date: Jan 2013
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Quote:
http://www.cfd-online.com/Forums/flu...ow-output.html Thank you. |
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January 25, 2013, 01:24 |
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#6 |
Senior Member
SSL
Join Date: Oct 2012
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Which forces makes the oscillating flow? inlet or outlet condition causes it?
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January 25, 2013, 05:42 |
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#7 |
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jiaqi wang
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January 25, 2013, 05:59 |
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#8 |
Senior Member
SSL
Join Date: Oct 2012
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so both inlet and outlet do the same, at some time inlet and at the other time does as outlet. correct? Is your case unsteady?
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January 25, 2013, 16:41 |
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#9 | |
Member
jiaqi wang
Join Date: Jan 2013
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Quote:
Thanks. |
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January 26, 2013, 03:29 |
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#10 |
Senior Member
SSL
Join Date: Oct 2012
Posts: 226
Rep Power: 15 |
You should use pressure inlet for both outlet and inlet. For more configuration you should use a DEFINE_PROFILE udf.
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