Thermodynamics HW Solutions 684

Thermodynamics HW Solutions 684 - = 2 2 max 1 ) ( R r r V V...

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Chapter 8 Internal Forced Convection 8-63 The velocity profile in fully developed laminar flow in a circular pipe is given. The radius of the pipe, the mean velocity, and the maximum velocity are to be determined. Assumptions The flow is steady, laminar, and fully developed. Analysis The velocity profile in fully developed laminar flow in a circular pipe is
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Unformatted text preview: = 2 2 max 1 ) ( R r r V V R r 0 V max V ( r )= V max (1-r 2 / R 2 ) The velocity profile in this case is given by ) 100 1 ( 6 ) ( V 2 r r = Comparing the two relations above gives the pipe radius, the maximum velocity, and the mean velocity to be m 0.10 = = R R 100 1 2 V max = 6 m/s m/s 3 = = = 2 m/s 6 2 V V max m 8-46...
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This note was uploaded on 01/24/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

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