Prandtl mixing length in turbulent flow signifies the

1.	Prandtl mixing length in turbulent flow signifies the
A.	average distance perpendicular to the mean flow covered by the mixing particles.
B.	wavelength corresponding to the lowest frequency present in the flow field.
C.	ratio of mean free path to characteristic length of the flow field.
D.	magnitude of turbulent kinetic energy.
Answer» B. wavelength corresponding to the lowest frequency present in the flow field.

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Prandtl mixing length in turbulent flow signifies the

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