The realizable k-ε model is based on ________(a) the turbulence model replacing the realizability constraint(b) the viscoelastic analogy replacing the realizability constraint(c) the realizability constraint with viscoelastic analogy(d) the realizability constraint without viscoelastic analogyThis question was addressed to me by my college professor while I was bunking the class.Enquiry is from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics

The realizable k-ε model is based on ________(a) the turbulence model

1.	The realizable k-ε model is based on ________(a) the turbulence model replacing the realizability constraint(b) the viscoelastic analogy replacing the realizability constraint(c) the realizability constraint with viscoelastic analogy(d) the realizability constraint without viscoelastic analogyThis question was addressed to me by my college professor while I was bunking the class.Enquiry is from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics
Answer» Right OPTION is (d) the realizability constraint without viscoelastic analogy The explanation is: The non-linear k-ε models were INITIALLY developed based on the analogy between the viscoelastic FLUIDS and the turbulent flows. This analogy is not used by the realizable k-ε MODEL. The realizability constraint rules out this analogy.

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