What does the name k-ε model signify?(a) The seven extra transport equations used in the model(b) The variation of k and ε with the flow variables(c) The variation of k with ε(d) The two extra transport equations used in the modelI had been asked this question during an interview.This key question is from Turbulence Modelling in division Turbulence Modelling of Computational Fluid Dynamics

What does the name k-ε model signify?(a) The seven extra transport eq

1.	What does the name k-ε model signify?(a) The seven extra transport equations used in the model(b) The variation of k and ε with the flow variables(c) The variation of k with ε(d) The two extra transport equations used in the modelI had been asked this question during an interview.This key question is from Turbulence Modelling in division Turbulence Modelling of Computational Fluid Dynamics
Answer» Correct answer is (d) The two EXTRA transport EQUATIONS used in the model The best I can explain: K-ε is a turbulence model used to supplement the RANS equations in overcoming its non-linearity. This model uses two ADDITIONAL transport equations which govern the transport of k and ε.

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