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-   -   Please help.BC for centrifugal impeller (http://www.cfd-online.com/Forums/fluent/37472-please-help-bc-centrifugal-impeller.html)

Shiju G.Thomas August 4, 2005 02:36

Please help.BC for centrifugal impeller
 
sir,

I am modeling a centrifugal fan impeller. I know the experimental results for suction pressure, discharge pressure and mass flow rates. What inlet and outlet conditions should i specify....Please help

Laika August 9, 2005 18:09

Re: Please help.BC for centrifugal impeller
 
if you give somewhat more info on the setup and the available flow conditions, we probably can help you with this.

kind regards, Laika, still orbiting

Shiju G.Thomas August 9, 2005 23:24

Re: Please help.BC for centrifugal impeller
 
Thanks for the response.... I have modelled an impeller with axial in flow and radial out flow. It is used to suck air to a unit. I have the experimental values for mass flow rate , inlet pressure and outlet pressure.

Laika August 10, 2005 18:00

Re: Please help.BC for centrifugal impeller
 
I'd apply a mass flow inlet and a pressure outlet.

If you can calculate the inlet toal pressure, I'd do a pressure inlet -- pressure outlet simulation as well, to see if the calculated flow rate matches experiments.

good luck,

Laika, still orbiting

Shiju G.Thomas August 11, 2005 05:27

Re: Please help.BC for centrifugal impeller
 
Thanks very much... By inlet total pressure u mean suction head+ dynamic head ?


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