Which of these could be an optimal mesh?(a) Non-uniform(b) Uniform(c) Grids with increasing lengths(d) Grids with decreasing lengthsThe question was asked in a national level competition.My query is from CFD Solution Procedure in section Philosophy of Computational Fluid Dynamics of Computational Fluid Dynamics

Which of these could be an optimal mesh?(a) Non-uniform(b) Uniform(c)

1.	Which of these could be an optimal mesh?(a) Non-uniform(b) Uniform(c) Grids with increasing lengths(d) Grids with decreasing lengthsThe question was asked in a national level competition.My query is from CFD Solution Procedure in section Philosophy of Computational Fluid Dynamics of Computational Fluid Dynamics
Answer» The correct answer is (a) Non-uniform The EXPLANATION is: A uniform GRID has all the cells with the same dimensions. The flow properties may not vary UNIFORMLY in the domain. Therefore, a non-uniform grid with more cells in the areas with large variations is an OPTIMAL WAY of grid generation.

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