[mcanoenen]

Hello dear colleuges,

I have encoded a CFD model for the flow between two parallel plates in the two dimensional space. But, when I solve the same conditions on the Ansys Fluent, it takes way shorter simulation time and number of iterations to get a convergent solution compared to my own code do. Also, in a convergent solution I am getting the same results between the analytical soluton, Ansys Fluent solution and my own CFD solution. But, somehow Fluent runs faster

Could you please explain me the reason why it's like that?

My code uses:
1) Finite Volume Method with Staggered Grid
2) QUICK, TVD, CD, UD and LUD Schemes (All of them slower than Fluent)
3) Under relaxations for velocities and pressure also included

Best regards,

mcanoenen