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The Rhie-Chow interpolation mimics __________

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The Rhie-Chow interpolation mimics __________

(a) pressure-velocity coupling of the collocated grid arrangement

(b) pressure-velocity coupling of the staggered grid arrangement

(c) pressure-velocity decoupling of the staggered grid arrangement

(d) pressure-velocity decoupling of the collocated grid arrangement

I have been asked this question in an internship interview.

My doubt is from Incompressible Flows in section Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

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The correct choice is (b) pressure-velocity coupling of the staggered grid arrangement

Easiest explanation: The pressure gradients in the Rhie-Chow interpolation are calculated using small grid stencil with two different stencils. This resembles the pressure-velocity coupling of the staggered grid arrangement.

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