Ch4: Two-Dimensional Steady-State
Conduction
4.1,4.3
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Overview
For 2D, steady-state conduction with const k
Heat diffusion equation
T T q x, y
0
2
2
x2
y2
k
Solution methods
Exact/Analytical:
Separation of Variables (4.2)
Ch7: External Flow
7.1~7.5 (except the part for mass transfer)
MAE310HeatTransfer,DrNaLi
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Overview
Classification of convection
Forced vs. Natural convection
External vs. Internal flow
Laminar vs. Turbulent flow
In chapter 6
Nu f x* , Re L , Pr
Nu
Ch1: Introduction
MAE310HeatTransfer,DrNaLi
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Whats Heat Transfer
Definition:
Transfer of (thermal) energy due to a spatial
temperature difference
Thermal energy (internal thermal energy):
Energy associated with microscopic behaviors of
matter
Heat t
Ch8: Internal Flow
8.1~8.5
MAE310HeatTransfer,DrNaLi
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Boundary Layer Development
Hydrodynamic/Velocity
Thermal/Temperature
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Mean Velocity and Temperature
Linkage of mean velocity to mass
flow rate
Linkage of mean temperature to
Ch2: Introduction to Conduction
MAE310HeatTransfer,DrNaLi
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Fouriers law
A rate equation that allows
determination of the conduction
heat flux from knowledge of the
temperature distribution in a
medium
General form
q k T
Direction of heat transfer
In
Ch6: Introduction to Convection
Except the part for mass transfer
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Velocity (Flow) Boundary Layer
A region of the flow
characterized by shear
stresses and velocity
gradients.
u y
Velocity boundary
thickness
Surface shear stre
Ch5: Transient Conduction
5.1~5.3
MAE310HeatTransfer,DrNaLi
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Overview
A heat transfer process for which the temperature varies with
time, as well as location within a solid.
It is initiated whenever a system experiences a change in
operating conditions