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The value of y^+ is used while finding ___________

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in Computational Fluid Dynamics by (118k points)
The value of y^+ is used while finding ___________

(a) eddy kinematic viscosity for the turbulent boundary layers

(b) mixing length for the turbulent boundary layers

(c) eddy dynamic viscosity for the turbulent boundary layers

(d) kinetic energy for the turbulent boundary layers

The question was posed to me in class test.

My question is based upon Turbulence Modelling in chapter Turbulence Modelling of Computational Fluid Dynamics

1 Answer

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by (65.4k points)

The correct answer is:

(b) mixing length for the turbulent boundary layers

The value of y+y+ is a dimensionless distance from the wall and is used in turbulence modeling to determine the mixing length, which helps in assessing the turbulent boundary layer characteristics and guiding the application of wall functions in simulations.

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