Mechanical Engineering > GATE 2015 SET-1 > Convection
For flow through a pipe of radius R, the velocity and temperature distribution are as follows: u(r,x) = C1, and T(r,x) = C2[1 - (r/R)3], where C1 and C2 are constants. The bulk mean temperature is given by Tm = (2/(UmR2)) ∫0R u(r,x)T(r,x)rdr, with Um being the mean velocity of flow. The value of Tm is
A
0.5 C2 / Um
B
0.5 C2
C
0.6 C2
D
0.6 C2 / Um

Correct : c

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