Question

The rate of change of velocity along the depth of layer is ___________

a.

\(\frac{∂v}{∂z}=\frac{1}{γ_w}\frac{∂^2 \overline{u}}{∂z^2} \)

b.

\(\frac{∂v}{∂z}=\frac{k}{γ_w}\frac{\overline{u}}{∂z^2} \)

c.

\(\frac{∂v}{∂z}=\frac{∂^2 \overline{u}}{∂z^2} \)

d.

\(\frac{∂v}{∂z}=\frac{k}{γ_w} \frac{∂^2 \overline{u}}{∂z^2} \)

Answer: (d).\(\frac{∂v}{∂z}=\frac{k}{γ_w} \frac{∂^2 \overline{u}}{∂z^2} \)

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Q. The rate of change of velocity along the depth of layer is ___________

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