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Choosing a particular type of discretization method is ineffective when ___________

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in Computational Fluid Dynamics by (118k points)
Choosing a particular type of discretization method is ineffective when ___________

(a) mathematical model is complex

(b) mathematical model is simple

(c) grid is coarse

(d) grid is very fine

I have been asked this question in exam.

The query is from Numerical Methods topic in section Numerical Methods of Computational Fluid Dynamics

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Correct option is (d) grid is very fine

Explanation: When the grid size is very small, whatever the type of discretization method is, the results will be the same. As very fine grids are not practically acceptable, we choose a particular type of discretization method which will be the best fit for the problem.

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