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Unformatted text preview: a constant wall temperature. Let / s T T = and * / r r R = . Numerically solve the heat equation for pipe flow with a constant wall temperature to determine the D Nu . Solve for the downstream mean fluid temperature variation in terms of / s T T = , D Nu , m , and . Show that the mean dimensionless temperature is given by 1 * * 2 ( / ) m z m r dr = . Let * ( 0) r = = when z = , and determine ( 0) m z = . Consider fluid, = 0.15x10-6 m 2 /s, flowing with a mean velocity of 30 cm/s, through a constant wall temperature pipe having a 1 cm interior diameter (ID). Plot the dimensionless temperature distribution through the pipe at the distances z = 0, 1, 2 and 5 m....
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- Winter '09