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The k-ω model adds ___________ to the RANS equations.

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The k-ω model adds ___________ to the RANS equations.

(a) three variables

(b) three equations

(c) two variables

(d) two equations

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This key question is from Turbulence Modelling topic in section Turbulence Modelling of Computational Fluid Dynamics

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Correct answer is (d) two equations

Best explanation: The k-ω model is a variation of the k-ε model. This also adds two equations which are the transport equations of k and ω to the RANS equations to overcome the linearity problem of the RANS equation.

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