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The value of y^+ is 50. Which layer does it belong to?

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The value of y^+ is 50. Which layer does it belong to?

(a) Inertia dominated layer

(b) Velocity defect layer

(c) Log-law layer

(d) Law of the wake layer

I have been asked this question in an internship interview.

Question is taken from Turbulence Modelling topic in portion Turbulence Modelling of Computational Fluid Dynamics

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Right option is (c) Log-law layer

For explanation: 30 < y^+ < 500 is the range of y^+ where the value of u^+ varies logarithmically with the y^+ value. It is called the log-law layer. As the value 50 falls in this range, it belongs to the log-law layer.

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