# Air at 15C flows at 10 m/s over a flat plate of length 2 m. Using one-seventh power law of

## Question:

Air at 15°C flows at 10 m/s over a flat plate of length 2 m. Using one-seventh power law of the turbulent flow, what is the ratio of local skin friction coefficient for the turbulent and laminar flow cases? (The kinematic viscosity of air is 1.470 × 10^{–5} m^{2}/s.)

(a) 1.25

(b) 3.72

(c) 6.31

(d) 8.64

(e) 12.0

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**Related Book For**

## Fluid Mechanics Fundamentals And Applications

**ISBN:** 9780073380322

3rd Edition

**Authors:** Yunus Cengel, John Cimbala

**Question Details**

Chapter #

**10**- APPROXIMATE SOLUTIONS OF THE NAVIER–STOKES EQUATIONSection: Problems

Problem: 138

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