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-   -   Calculation of Lift (http://www.cfd-online.com/Forums/fluent/104481-calculation-lift.html)

nauman55 July 10, 2012 14:17

Calculation of Lift
 
Hi every one, i am facing a problem. i want to calculate lift of a body placed in far field. i m using SA model and 0.7 mach as boundary condition. what values should i feed in area, and length while i am computing results from far field.guidance in this regards is required.
thanx in anticipation

sicfred July 12, 2012 06:54

The lift that fluent calculates, is just a coefficient between the lift force (lets say in newton) and the 0.5*rho*A*v^2 wich are the reference values that you put in Fluent. Usually the area "A " is the proyection area of the body in the plane perpendicular to the far flow. In this case, i think that you dont need the reference lenght.
On the other hand, if you just want to know the lift force in newton, i recomend you to calculate in report> forces.


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