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ReadingQuestions_19_Chp_9.5-9.6

ReadingQuestions_19_Chp_9.5-9.6 - From Example 9-18 for...

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Chemical Engineering 374 Fall 2011 Reading Questions 19—Chapter 9.5-9.6 Name ________________________________________________________ 1. What kind of fluid is assumed for the Navier-Stokes (N-S) equation? 2. What assumption about the fluid density was also made in order to obtain the N-S equation? 3. How are each of the following boundary conditions expressed mathematically? a. No-slip boundary condition b. Interface boundary condition c. Free-surface boundary condition 4.
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Unformatted text preview: From Example 9-18 for fully-developed laminar flow in a pipe, a. What boundary condition was applied to the centerline of the pipe (r=0)? b. How is the average velocity related to the maximum (centerline) velocity? c. What is the shear stress in the fluid as a function of the radial position? 5. In Example 9-19, when Equation 5 was integrated to give Equation 8, why was the integration “constant” not a constant at all, but a function?...
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