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Originally Posted by iacoposk8
Hello everyone! if I have two objects in 3d format obj or stl, with which software can I know what is more aerodynamic? thank you
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Some recent mechanical engineering graduate students who did CFD for their Masters Thesis have commented that only the Direct Numerical Simulation form of CFD can predict all the turbulence of a 3-D object.
Dr. Teddy Woll,of Daimler-Benz says that Mercedes-Benz is using it and it is within 1% accuracy of full-scale wind tunnel tests.
With a supercomputer,a digitized automobile requires about 48-hours run time due to the mesh size,and time steps required for this full Navier-Stokes solver.
Desktop CFD has shown errors of 13%.They DO however show definite 'trends' in performance.