how can caclulate forceCoeffs of force.dat file after finishing analysis -- CFD Online Discussion Forums

May 14, 2013, 04:49	how can caclulate forceCoeffs of force.dat file after finishing analysis	#1
s.m Senior Member saeideh mohamadi Join Date: Aug 2012 Posts: 229 Rep Power: 14	Hi dear Foamers, i am analyzing the incompressible flow over a Naca 4412 airfoil, my analysis has been converged at 534th step.now i have a folder that the results for forces are in it, the last line of "force.dat" file is : """# Time forces(pressure, viscous) moment(pressure, viscous) 534 (((1.49508 -6.67508e-18 101.445) (1.17413 2.86026e-21 -0.0507981)) ((-20.2891 1.94745 0.299016) (0.0101596 -0.0244948 0.234827)))""" my Question is that how could i use the number of "forces(pressure, viscous)" to calculate the "cd and cl" or "moment(pressure, viscous)" to compute "cm" ?? please help me understand the issue, thank you very much Regards.

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