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The variation of the size of a cell from an optimal cell size is its __________

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The variation of the size of a cell from an optimal cell size is its __________

(a) centroid

(b) structure

(c) orthogonality

(d) skewness

The question was posed to me in examination.

The doubt is from Numerical Methods in portion Numerical Methods of Computational Fluid Dynamics

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Correct choice is (d) skewness

Explanation: The skewness of a cell is its variation from the optimal cell size. This is an apt indicator of the quality and suitability of a mesh. Large skewness leads to less accuracy.

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