ech%203264_exam2_sp07

ech%203264_exam2_sp07 - ECH 3264: Spring 2007 Exam #2...

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ECH 3264: Elementary Transport Phenomena Spring 2007 Exam #2 March 28, 2007 Name: Closed book and notes. No calculators. Start each problem on a new page. DO NOT use the back of a page. Write clearly your assumptions and any parameter definitions. Show your work to get maximum credit. It is helpful to the grader (and to you) if you box intermediate and final answers. Assume steady state, Newtonian fluid, laminar flow unless explicitly stated otherwise. If the problem does not specify the method to obtain the governing differential equation you are free to use whichever method is convenient (i.e. simplify equations of motion or derive from shell balances). Useful information: Relevant volume and surface areas: rL SA r SA L r V r V cylinder sphere cylinder sphere π 2 4 3 4 2 2 3 = = = = 1. (10) Consider the two images shown below which were taken 5 seconds after rotation began. The white line provides the ink line position before rotation began. Both images were taken for situations with Re>1. (a)
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ech%203264_exam2_sp07 - ECH 3264: Spring 2007 Exam #2...

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