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The realizable k-ε model is best for predicting __________

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in Computational Fluid Dynamics by (118k points)
The realizable k-ε model is best for predicting __________

(a) mixing layers

(b) wake formation

(c) spreading of jets

(d) smooth boundary layer flows

This question was posed to me during an internship interview.

The origin of the question is Turbulence Modelling topic in section Turbulence Modelling of Computational Fluid Dynamics

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Best answer
Right option is (c) spreading of jets

Best explanation: The realizable k-ε model more accurately predicts the spreading of jets, be it planar or round jets. It performs better than the other models for complex problems involving recirculation and flow separation.

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