If the maximum center velocity is 100 cm/s, what is the average velocity across the cross-section in laminar flow?

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Multiple Choice

If the maximum center velocity is 100 cm/s, what is the average velocity across the cross-section in laminar flow?

Explanation:
Laminar flow in a circular tube forms a parabolic velocity profile: speed is highest at the center and drops to zero at the wall. When you average this profile across the cross-section, the math shows the average velocity is exactly half of the center (maximum) velocity. So with a maximum center velocity of 100 cm/s, the average velocity across the cross-section is 50 cm/s.

Laminar flow in a circular tube forms a parabolic velocity profile: speed is highest at the center and drops to zero at the wall. When you average this profile across the cross-section, the math shows the average velocity is exactly half of the center (maximum) velocity. So with a maximum center velocity of 100 cm/s, the average velocity across the cross-section is 50 cm/s.

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