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The various fluid parcels come into contact in turbulent flow by ___________

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The various fluid parcels come into contact in turbulent flow by ___________

(a) Turbulent energy transfer

(b) Turbulent vorticity

(c) Turbulent dissipation

(d) Turbulent diffusion

This question was posed to me in my homework.

I want to ask this question from Turbulence Modelling topic in division Turbulence Modelling of Computational Fluid Dynamics

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Correct option is (d) Turbulent diffusion

Explanation: Turbulence increases the rate at which conserved quantities are mixed. Here, different fluid parcels are brought into contact. As this mixing is accomplished by diffusion, the process is called turbulent diffusion.

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