[ck3]

Hello,
I using unsteady flow option in fluent to solve a separated turbulent flow over a wavy wall.
The purpose of this test is to compare the predictions of FLUENT's Realizable k-e turbulence model, against the DNS results of Maaß and Schumann.
For more detail, you can consult this link:
http://cfd.me.umist.ac.uk/ercofold/d...77/test77.html
I chose the computational domain to cover only one period of the wavy channel. The length of the periodic domain is 1 m. An 64x96 quadrilateral mesh was generated and the velocity is 0,103 m/s.
I need to define the number of steps and the steps size.
Please anyone could tell me what should be the number of steps and the step size, and also the max. number of iteration. How should I calculate them?
Thank you very much.