# How to obtain forces

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 August 22, 2005, 16:55 How to obtain forces #1 Karimu Guest   Posts: n/a I am interested in obtaining the forces Fl,Fd,Fmy where Fl=lift force Fd=Drag force and Fmy=Moment about y-axis I know that fluent gives the Cd,Cm and Cl, but I will like if anyone knows how to obtain the forces. Thanks to all

 August 22, 2005, 17:25 Re: How to obtain forces #2 Jason Guest   Posts: n/a I'm assuming you're talking about when you monitor forces (when you Report->Forces it lists the force and the coefficient). If you set RHOref=2, Vref=1, Aref=1 and Lref=1 in the reference values window then you'll get forces (check your units though!) Remember: F=(1/2)*RHOref*Vref^2*Aref*Coef and M=(1/2)*RHOref*Vref^2*Aref*Lref*Coef So by setting the values I gave earlier, you've simplified the formulas to: F=Coef and M=Coef But like I said, double check your units. Hope this helps, and good luck, Jason

 August 22, 2005, 17:26 Re: How to obtain forces #3 Karimu Guest   Posts: n/a Thanks Jason

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