A horizontal, 25-mm diameter cylinder is maintained at a uniform surface temperature of 35C. A fluid with
Question:
A horizontal, 25-mm diameter cylinder is maintained at a uniform surface temperature of 35°C. A fluid with a velocity of 0.05 m/s and temperature of 20°C is in cross flow over the cylinder. Determine whether heat transfer by free convection will be significant for
(i) Air,
(ii) Water,
(iii) Engine oil, and
(iv) Mercury.
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Calculation The Grashof number for air is given by Gr gT2 T1L32 where g is the accelera...View the full answer
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Related Book For 
Fundamentals Of Heat And Mass Transfer
ISBN: 9780470501979
7th Edition
Authors: Theodore L. Bergman, Adrienne S. Lavine, Frank P. Incropera, David P. DeWitt
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