Question

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

• A. \( \frac{1}{2} \)
• B. \( \frac{2}{3} \)
• C. 1
• D. \( \frac{3}{2} \)

Hint:

In laminar flow, the momentum correction factor and energy correction factor are commonly used to account for the non-uniform velocity profile across the cross-section of the pipe.

Answer 1

The Correct Option is B

For laminar flow in a pipe, the momentum correction factor is typically \( \frac{4}{3} \), and the energy correction factor is typically \( 2 \). The ratio of these two factors is: \[ \frac{\text{Momentum correction factor}}{\text{Energy correction factor}} = \frac{\frac{4}{3}}{2} = \frac{2}{3}. \] Final Answer: \[ \boxed{\frac{2}{3}}. \]