The velocity profile exhibited by laminar flow of Newtonian fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an ______________ with the apex at the centre line of the pipe?
Correct answer: B. Parabola
- A. Hyperbola
- B. Parabola
- C. Semi-circle
- D. Semi-ellipse
Explanation
For fully developed laminar flow of a Newtonian fluid in a circular pipe, the velocity profile follows v = v_max[1 − (r/R)^2]. This quadratic relation gives a parabola with its maximum at the centre line and zero velocity at the wall.
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