For laminar forced convection over a flat plate, if the free stream velocity increases by a factor of 2, the average heat transfer coefficient (A) remains same (C) rises by a factor of √2 (B) decreases by a factor of √√2 (D) rises by a factor of 4

For laminar forced convection over a flat plate, if the free stream velocity increases by a factor of 2, the average heat transfer coefficient (A) remains same (C) rises by a factor of √2 (B) decreases by a factor of √√2 (D) rises by a factor of 4

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.7P: 5.7 The average Reynolds number for air passing in turbulent flow over a 2-m-long, flat plate is ....

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

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Complete solution please

For laminar forced convection over a flat plate, if the free stream velocity increases by a
factor of 2, the average heat transfer coefficient
(A) remains same
(C) rises by a factor of √2
(B) decreases by a factor of √√2
(D) rises by a factor of 4

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