Boundary conditions near the solid-walls for a k-ε model depends on ___________(a) Eddy viscosity(b) Reynolds number(c) ε-value(d) k-valueThe question was asked in class test.Query is from Turbulence Modelling topic in section Turbulence Modelling of Computational Fluid Dynamics

Boundary conditions near the solid-walls for a k-ε model depends on _

1.	Boundary conditions near the solid-walls for a k-ε model depends on ___________(a) Eddy viscosity(b) Reynolds number(c) ε-value(d) k-valueThe question was asked in class test.Query is from Turbulence Modelling topic in section Turbulence Modelling of Computational Fluid Dynamics
Answer» The correct answer is (B) Reynolds number The explanation: The BEHAVIOUR of the BOUNDARY conditions depends on the Reynolds number. NEAR the WALL, the k-ε model does not perform well. So, wall functions are used. This again depends on the Reynolds number of the flow only.

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