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The ratio of the momentum correction factor to the energy correction factor for laminar flow in a pipe is

1. 1/2
2. 2/3
3. 3/2
4. 2

Correct answer: 2/3

Solution

For laminar flow in a circular pipe, the momentum correction factor is \(\beta = 4/3\) and the energy correction factor is \(\alpha = 2\). Their ratio is \(\beta/\alpha = (4/3)/2 = 2/3\).

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