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Numerical dispersion is a result of __________

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Numerical dispersion is a result of __________

(a) higher-order interpolation profile

(b) unphysical behaviour of assumed interpolation profile

(c) first-order interpolation profile

(d) quadratic interpolation profile

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I'm obligated to ask this question of Convection-Diffusion Problems in division Convection-Diffusion Problems of Computational Fluid Dynamics

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Right option is (b) unphysical behaviour of assumed interpolation profile

Explanation: Numerical dispersion error arises with all interpolation profiles except the upwind scheme. It is the result of the unphysical behaviour of the assumed interpolation profile. It leads to unphysical dispersion.

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