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Fluent profile reading for another solution

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Old   January 5, 2016, 10:02
Default Fluent profile reading for another solution
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Ozge
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Hello all,
I need help with a problem. I have an aircraft simulation series. The main geometry is the same: same fuselage same wing with little differences, i.e. aileron angle, flap etc.

The fuselage is very detailed and the mesh size is quite big as is. I want to use the results from a full size analysis and solve the other ones with smaller mesh, without using fuselage and farfield.

I have written a profile for the cross-section I want from the full-size analysis result and read it into the new mesh boundary. However, what boundary type should I use for this? If I use pressure inlet, I can specify pressure and temperature but velocity directions are off. Velocity-inlet does not work at all (absurd pressure values).

Is this doable? How can I do it?

Btw, it is compressible flow, k-w SST 0.2 Mach.
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Old   January 6, 2016, 15:44
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If you want to specify as many parameters as possible then you should be using velocity inlet and specifying, x,y,z velocity, temperature, and turbulence.
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Old   January 7, 2016, 04:35
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Jordi Pina
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Hello,

I'm facing someway the same problem and I have the following problem:

http://www.cfd-online.com/Forums/flu...-attached.html

Maybe it inspires you... I'm using velocity inlet and a UDF which interpolates values from the macro simulation for setting the velocity in the coordinates x and y.

Thanks!
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Old   January 22, 2016, 07:26
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Ozge
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Thanks for the replies guys. Sorry, urgent jobs came in the way and i couldn't reply quickly.
I will try and play around a bit with velocity inlet but will it be numerically correct? I mean my flow is compressible and fluent says velocity inlet is not very good for comp. flows.
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