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Solved: Consider the nanofluid of Example 2.2. (a)

Introduction to Heat Transfer | 6th Edition | ISBN: 9780470501962 | Authors: Theodore L. Bergman ISBN: 9780470501962 111

Solution for problem 6.34 Chapter 6

Introduction to Heat Transfer | 6th Edition

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Introduction to Heat Transfer | 6th Edition | ISBN: 9780470501962 | Authors: Theodore L. Bergman

Introduction to Heat Transfer | 6th Edition

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Problem 6.34

Consider the nanofluid of Example 2.2. (a) Calculate the Prandtl numbers of the base fluid and nanofluid, using information provided in the example problem. (b) For a geometry of fixed characteristic dimension L, and a fixed characteristic velocity V, determine the ratio of the Reynolds numbers associated with the two fluids, Renf/Rebf. Calculate the ratio of the average Nusselt numbers, , that is associated with identical average heat transfer coefficients for the two fluids, . (c) The functional dependence of the average Nusselt number on the Reynolds and Prandtl numbers for a broad array of various geometries may be expressed in the general form where C and m are constants whose values depend on the geometry from or to which convection heat transfer occurs. Under most conditions the value of m is positive. For positive m, is it possible for the base fluid to provide greater convection heat transfer rates than the nanofluid, for conditions involving a fixed geometry, the same characteristic velocities, and identical surface and ambient temperatures?

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Day 5 ­fprintf­This function is used to format output ­anything written in single parentheses that becomes a string of text is a string value, or a numerical value see picture below to see the syntax). Example: >> y=input('Enter a number') Enter a number Or >> z = input('Enter Text:','s') Enter Text: ­Syntax:fprintf(format_string, variables) ­if you want to use special characters in the string, put ‘/’ In class exercises: Number 3: >> untitled5 f = @(x)(sin(x)).^2+((cos(x)).^2./(sin(x)­cos(x))) Enter a number x = [] Y = [] >> untitled5 f = @(x)(sin(x)).^2+((cos(x)).^2./(sin(x)­cos(x))) Enter a number[0 pi/8 pi/6 pi/4 pi/2] x = 0

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Chapter 6, Problem 6.34 is Solved
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Textbook: Introduction to Heat Transfer
Edition: 6
Author: Theodore L. Bergman
ISBN: 9780470501962

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Solved: Consider the nanofluid of Example 2.2. (a)