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Which one of the following is incorrect for the developing region of the pipe flow?
  • a)
    The velocity profile continuously takes a parabolic shape downstream
  • b)
    The velocity near the centre line is greater than free stream velocity
  • c)
    The fluid has convective acceleration
  • d)
    The average velocity in developing region is more than the average velocity in fully developed flow
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which one of the following is incorrect for the developing region of ...
Assuming constant discharge and incompressible flow
Clearly, the velocity profile is more parabolic downstream. The velocity near the centre is increasing, so the fluid has convective acceleration.
By continuity equation Q entry = Q developing region = Q developed region So ! × U = A × Uavg,developing = A × Uavg Since A is constant, as diameter of pipe is constant.
U∞ = Uavg,developing = Uavg = Umax / 2
So the average velocity stays constant, and velocity at the centre line is the maximum velocity (Umax ) which is always greater than free stream velocity (U).
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Most Upvoted Answer
Which one of the following is incorrect for the developing region of ...
Assuming constant discharge and incompressible flow
Clearly, the velocity profile is more parabolic downstream. The velocity near the centre is increasing, so the fluid has convective acceleration.
By continuity equation Q entry = Q developing region = Q developed region So ! × U = A × Uavg,developing = A × Uavg Since A is constant, as diameter of pipe is constant.
U∞ = Uavg,developing = Uavg = Umax / 2
So the average velocity stays constant, and velocity at the centre line is the maximum velocity (Umax ) which is always greater than free stream velocity (U).
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Which one of the following is incorrect for the developing region of the pipe flow?a) The velocity profile continuously takes a parabolic shape downstreamb) The velocity near the centre line is greater than free stream velocityc) The fluid has convective accelerationd) The average velocity in developing region is more than the average velocity in fully developed flowCorrect answer is option 'D'. Can you explain this answer?
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Which one of the following is incorrect for the developing region of the pipe flow?a) The velocity profile continuously takes a parabolic shape downstreamb) The velocity near the centre line is greater than free stream velocityc) The fluid has convective accelerationd) The average velocity in developing region is more than the average velocity in fully developed flowCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Which one of the following is incorrect for the developing region of the pipe flow?a) The velocity profile continuously takes a parabolic shape downstreamb) The velocity near the centre line is greater than free stream velocityc) The fluid has convective accelerationd) The average velocity in developing region is more than the average velocity in fully developed flowCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is incorrect for the developing region of the pipe flow?a) The velocity profile continuously takes a parabolic shape downstreamb) The velocity near the centre line is greater than free stream velocityc) The fluid has convective accelerationd) The average velocity in developing region is more than the average velocity in fully developed flowCorrect answer is option 'D'. Can you explain this answer?.
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