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What is the formula for kinematic eddy viscosity?

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in Fluid Mechanics by (118k points)
What is the formula for kinematic eddy viscosity?

(a) Eddy viscosity / kinematic viscosity

(b) Eddy viscosity * kinematic viscosity

(c) Eddy viscosity / mass density

(d) Eddy viscosity / dynamic viscosity

I had been asked this question in semester exam.

This intriguing question originated from Universal Velocity Distribution topic in portion Viscous Flow & Turbulent Flow of Fluid Mechanics

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Correct answer is (c) Eddy viscosity / mass density

Best explanation: Kinematic eddy viscosity is defined as the ratio between Eddy viscosity and mass density of the fluid. It happens mainly at one hundred times the molecular kinematic viscosity. It is in the order 1m^2s^-1.

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