EX4: Non-Constant Conductivity II
Homework Problems
Equation (6.7-) gives the
temperature distribution in an infinite circular tube with inner
radius and outer radius
and boundary
temperatures
.
shows that the thermal conductivity
varies with temperature.
can increase or decrease with or remain
relatively constant.
What we want to do here is to obtain an equation which represents the
solution for every possible specification of and .
Note that in
this problem
is a linear function of .
Problem
62 - homework!
:
Make equation (6.7-)
dimensionless in terms of
Equation
130
Equation
131
and one dimensionless parameter,
Equation
132
Use equations (6.1) and
(6.6) to represent
and .
Recall that we have set
,
therefore
.
Problem
64 - homework!
:
What is your physical interpretation of the parameter
?
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