Homework Set #3:
Due date: 09/30/10, by 12:00 pm
Problem #1:
Two immiscible fluids A and B are flowing in laminar flow between two parallel plates. Is it
possible that the velocity profiles would be of the following form? Explain
Problem #2:
Solve problem 2A.3 at the end of Chapter 2 of BSL.
Problem #3:
Perform y and xmomentum balances for the falling film flow problem and show that
These balances are not necessary for obtaining the velocity profile in thin film flow.
Problem #4:
Problem 2B.3 at the end of chapter 2 of BSL, parts (a), (b) and (c) only.
Follow the terminology
in the diagram in Figure 2B.3 on p. 63.
Note that x = 0 in the center of the slit in this figure.
Note also that the answers are given; what is desired is the derivation.
For convenience in
grading, perform the derivation in the following steps:
a)
Define a control volume
b)
State assumptions
c)
Perform a momentum balance on zmomentum, and explain why there is no need to
perform respective balances on x and y momentum.
d)
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 Spring '11
 Q.P.NGUYEN

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