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6.3 In a particular application involving airflow over a sur- face, the boundary layer temperature distribution may be approximated as P(-Pr"-y) T-TS = exp-Pr T-T where y is the distance normal to the surface and the Prandtl number, Pr = cµ/k = 0.7, is a dimensionless fluid property. If T… = 400 K, Ts = 300 K, and u/V = 5000 m¹, what is the surface heat flux? 6.8 Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. How- ever, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a partic- ular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent con- ditions are ham (x) = 1.74 W/m¹.5 • K x−0.5 hturb (x) = 3.98 W/m¹.8 • K x−0.2 Calculate the average heat transfer coefficients for lam- inar and turbulent conditions for plates of length L 0.1 m and 1 m.

6.3 In a particular application involving airflow over a sur- face, the boundary layer temperature distribution may be approximated as P(-Pr"-y) T-TS = exp-Pr T-T where y is the distance normal to the surface and the Prandtl number, Pr = cµ/k = 0.7, is a dimensionless fluid property. If T… = 400 K, Ts = 300 K, and u/V = 5000 m¹, what is the surface heat flux? 6.8 Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. How- ever, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a partic- ular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent con- ditions are ham (x) = 1.74 W/m¹.5 • K x−0.5 hturb (x) = 3.98 W/m¹.8 • K x−0.2 Calculate the average heat transfer coefficients for lam- inar and turbulent conditions for plates of length L 0.1 m and 1 m.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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6.3 In a particular application involving airflow over a sur- face, the boundary layer temperature distribution may be approximated as P(-Pr"-y) T-TS = exp-Pr T-T where y is the distance normal to the surface and the Prandtl number, Pr = cµ/k = 0.7, is a dimensionless fluid property. If T… = 400 K, Ts = 300 K, and u/V = 5000 m¹, what is the surface heat flux?
Transcribed Image Text:6.3 In a particular application involving airflow over a sur- face, the boundary layer temperature distribution may be approximated as P(-Pr"-y) T-TS = exp-Pr T-T where y is the distance normal to the surface and the Prandtl number, Pr = cµ/k = 0.7, is a dimensionless fluid property. If T… = 400 K, Ts = 300 K, and u/V = 5000 m¹, what is the surface heat flux?
6.8 Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. How- ever, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a partic- ular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent con- ditions are ham (x) = 1.74 W/m¹.5 • K x−0.5 hturb (x) = 3.98 W/m¹.8 • K x−0.2 Calculate the average heat transfer coefficients for lam- inar and turbulent conditions for plates of length L 0.1 m and 1 m.
Transcribed Image Text:6.8 Laminar flow normally persists on a smooth flat plate until a critical Reynolds number value is reached. How- ever, the flow can be tripped to a turbulent state by adding roughness to the leading edge of the plate. For a partic- ular situation, experimental results show that the local heat transfer coefficients for laminar and turbulent con- ditions are ham (x) = 1.74 W/m¹.5 • K x−0.5 hturb (x) = 3.98 W/m¹.8 • K x−0.2 Calculate the average heat transfer coefficients for lam- inar and turbulent conditions for plates of length L 0.1 m and 1 m.
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