class 11 - Introduction to Convection: Boundary Layer...

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Unformatted text preview: Introduction to Convection: Boundary Layer Equations Sections 6.4 through 6.6 Class 11 Given a temperature distribution in a boundary layer over a flat plate such that T = 20 + 70 exp(-600xy) where x and y are in meters, determine the local heat coefficient. T = 20 o C, L = 5 m and T s = 90 o C. Given a temperature distribution in a boundary layer over a flat plate such that T = 20 + 70 exp(-600xy) where x and y are in meters, determine the average heat coefficient. T = 20 o C, L = 5 m and T s = 90 o C. Boundary Layer Transition location at which transition to turbulence begins c x 5 6 , ~ ~ 10 Re 3 x 10 x c < < Effect of transition on boundary layer thickness and local convection coefficient: The Boundary Layer Equations Consider concurrent velocity and thermal boundary layer development for steady, two-dimensional, incompressible flow with constant fluid properties . Apply conservation of mass , Newtons 2 nd Law of Motion and conservation of energy to a differential control volume . Velocity Boundary Layer: Y y v x v y p y v v x v u X y u x u x p y u v x u u + + + - = + + +...
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This note was uploaded on 08/13/2011 for the course CHEM 3210 taught by Professor Degrazia during the Fall '10 term at Colorado.

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class 11 - Introduction to Convection: Boundary Layer...

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