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The coefficient approximation in the Rhie-Chow interpolation is ___________

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in Computational Fluid Dynamics by (117k points)
The coefficient approximation in the Rhie-Chow interpolation is ___________

(a) fourth-order accurate

(b) third-order accurate

(c) second-order accurate

(d) first-order accurate

The question was asked in final exam.

Question is from Incompressible Flows topic in portion Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

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The correct option is (c) second-order accurate

Easy explanation: The coefficient approximation in the Rhie-Chow interpolation results in an equation which is the same as the one obtained using the staggered grids. This coefficient approximation is of second-order accuracy.

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