Time Step Size for Airfoil Model - Fluent -- CFD Online Discussion Forums

November 4, 2004, 18:42	Time Step Size for Airfoil Model - Fluent	#1
Prateek Guest Posts: n/a	Hi, We are trying to calculate the time step size and the number of time steps for Fluent 6.1. Here are our parameters: U, freestream velocity = 21.63 m/s Re = 1.17E4 Length of 'Wind Tunnel' = 0.4 m (400 mm) D, characteristic length = 0.008 mm (height of airfoil) How should I go about calculating the ideal time step size (s) and the number of time steps in the 'Iterate' menu of Fluent 6.1? If anyone can help us, that would be great! - Prateek University of Michigan

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