Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. However, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a particular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent conditions are hx,lam (1.74 W/m¹.5. K)x-0.5 and hx.turb (3.98 W/m¹.8. K ) x-0.2, respectively. Calculate the average heat transfer coefficients, in W/m²-K for laminar and turbulent conditions for plates of length L = 0.1 m. = Llam = hL,turb = i i W/m².K W/m².K

Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. However, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a particular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent conditions are hx,lam (1.74 W/m¹.5. K)x-0.5 and hx.turb (3.98 W/m¹.8. K ) x-0.2, respectively. Calculate the average heat transfer coefficients, in W/m²-K for laminar and turbulent conditions for plates of length L = 0.1 m. = Llam = hL,turb = i i W/m².K W/m².K

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. However, the flow can be
tripped to a turbulent state by adding roughness to the leading edge of the plate. For a particular situation, experimental results show
that the local heat transfer coefficients for laminar and turbulent conditions are hx,lam = (1.74 W / m¹.5 · K ) x-0.5 and
hx,turb= (3.98 W/m²
1.8
K ) x-0.2, respectively. Calculate the average heat transfer coefficients, in W/m².K for laminar and
turbulent conditions for plates of length L = 0.1 m.
₁,Jam
h₁.turb
||
=
||
=
i
i
W/m².K
W/m².K

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