ReadingQuestions_13_Chp_8.5

ReadingQuestions_13_Chp_8.5 - pipe. What might cause the...

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Chemical Engineering 374 Fall 2011 Reading Questions 13—Chapter 8.1-8.4 Name ________________________________________________________ 1. In turbulent flow, why is the shear stress much larger than – μ dv avg /dr? 2. With respect to pipe flows, when is a surface considered rough and when is it considered smooth? 3. Is the Colebrook equation theoretical or emperical? Explain. 4. Indicate two places in the textbook where roughness values are given for various kinds of
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Unformatted text preview: pipe. What might cause the actual roughness values to be larger than the values given in the book? 5. Regarding Example 8-3, comment on which of the following would have increased the pumping power the most: smooth pipe, cast iron pipe, commercial steel pipe, or copper tubing. Why?...
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This note was uploaded on 03/20/2012 for the course CHE 374 taught by Professor Davido.lignel during the Fall '11 term at BYU.

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