Hi, If you plan on using the Fourier expansion in the third direction (2.5D), than yes you can start with a 2D solution and than use expansion. This is good if your problem is periodic in that direction. If you are thinking about a full 3D case you might experiment with interpolation (see manual). I was unsuccessful with this approach, but have not really tried. Best, SG On 20.01.2018 21:02, Moto Light wrote:

i need to run 3D case for square cylinder for Reynolds 600 what do you think is it possible to run the case 2D and start with this case solution as a initial solution for the 3D case, or i can start my case in 3D from beginning.

regards, Reda

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