For the fully developed laminar flow and the transfer in a uniformly heated long circular tube, if the velocity is doubled and the tube diameter is halved, the heat transfer coefficient will be:

Four times of the original value.

For the fully developed laminar flow and the transfer in a uniformly h

1.	For the fully developed laminar flow and the transfer in a uniformly heated long circular tube, if the velocity is doubled and the tube diameter is halved, the heat transfer coefficient will be:
A.	Double of the original value
B.	Half of the original value
C.	Same as before
D.	Four times of the original value.
Answer» D. Four times of the original value.

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For the fully developed laminar flow and the transfer in a uniformly heated long circular tube, if the velocity is doubled and the tube diameter is halved, the heat transfer coefficient will be:

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