Determine the convection coefficient for each velocity

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Air at 40°C flows over a long, 25-mm-diameter cylinder with an embedded electrical heater. In a series of tests, measurements were made of the power per unit length, P', required to maintain the cylinder surface temperature at 300°C for different free stream velocities V of the air. The results are as follows:

1331_c4b98e75-b22c-4469-bcc8-1f0666e36e26.png

(a) Determine the convection coefficient for each velocity, and display your results graphically.

(b) Assuming the dependence of the convection coefficient on the velocity to be of the form h = CVn, determine the parameters C and n from the results of part (a).

Reference no: EM131281651

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