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The SGS stresses are obtained from ___________

(a) Reynolds stress term

(b) Convection term

(c) Source term

(d) Diffusion term

This question was addressed to me during an online exam.

Origin of the question is Turbulence Modelling topic in division Turbulence Modelling of Computational Fluid Dynamics

1 Answer

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Best answer
Correct option is (a) Reynolds stress term

Best explanation: Reynolds stress term comes from the Reynolds-Averaged Navier-Stokes (RANS) equations. When this term is again averaged, but based on spatial coordinate this time, the SGS stresses occur.

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