Homework_C9

# Homework_C9 - Homework Set 9 Due Date 10-31-05 Problem#1...

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Homework Set # 9 Due Date 10 -31-05 Problem #1: Rework question (a) in problem # 4 (heated sphere submerged in the motionless fluid) and problem #5 (heat flow through an annular solid wall) in the homework set # 8, using the energy equation in the lecture note or tabulated equations in the textbook (appendix B in the 2 nd edition, or chapter 10 in the 1 st edition). Note that you DO NOT need to solve the differential equations of temperature. Only show how to simplify the general equation of energy in terms of temperature using the assumptions in the problems. Problem #2: Rework the viscous heating problem discussed in Section 9-4 in the textbook, 1 st edition (or Section 10-4, 2 nd edition). In the current case oil is replaced by a polymer melt, whose viscosity can be adequately by the power law model 1 n z du m dx η ⎛⎞ = ⎜⎟ ⎝⎠ Show that the temperature distribution is () 0 0 1 1 0 1 Br 1 2 Br b n b n b TT x xx b b b mu bkT T + = −+ = cf dg eh Problem # 3: Rework Example 11.4-6 (or 10.5-6 in the 1 st edition) in the textbook. Develop equations

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## This note was uploaded on 09/01/2011 for the course PGE 312 taught by Professor Peters during the Fall '08 term at University of Texas.

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Homework_C9 - Homework Set 9 Due Date 10-31-05 Problem#1...

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