CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Answer Yes or No. (http://www.cfd-online.com/Forums/fluent/47482-answer-yes-no.html)

Shim February 29, 2008 11:31

Answer Yes or No.
 
Hei,

FLUENT can plot the Drag force as belows In case of circular cylinder.

1. Monitor--Forces..

2. Refort--> Forcse..

3. UDF

4. Surface Integrals using Costoms Flied Funtions where pressure difference on the surface of circular cylinder. Drag force = pressure force + viscous force pressure force = intergral (static pressure - pressure coefficent) at circular surface. viscous force = Wall Fluxes--> X-wall shear Stress

5. Moment difference between inlet and oulet.

Force = sum(Velocity inlet*density*Projected area*Vin)

- sum(Velocity inlet*density*Projected area*Vout)

Am i right??? YES or NO.

Thank you very much for your answer.

And. One more, If cylinder wall is not wall. it mean is porous-jump... How can get the Force on the surface of porous cylinder.

Best regards Shim.



All times are GMT -4. The time now is 07:06.