3. Water flowing through a pipe assumes a laminar-flow velocity profile at some section is parabolic: u(0) -4J Figure 2 where u(r) is the velocity at any position r, ß is a constant,-11s the viscosity of water, and r is the radial distance from the pipe centerline. (a) Develop an equation for u(r) assuming a parabolic velocity profile and using the known velocities at the walls u(ro)-0 and the center u(0) (Just use symbols). (b) Develop an equation for shear stress in the fluid at the wall of the pipe (Just use symbols). (c) If the given profile persists a distance L along the pipe, what is the force on the wall due to the moving water and what is its direction? (Hint: The force on the wall is equal in magnitude but in the opposite direction of that in the fluid.)
3. Water flowing through a pipe assumes a laminar-flow velocity profile at some section is parabolic: u(0) -4J Figure 2 where u(r) is the velocity at any position r, ß is a constant,-11s the viscosity of water, and r is the radial distance from the pipe centerline. (a) Develop an equation for u(r) assuming a parabolic velocity profile and using the known velocities at the walls u(ro)-0 and the center u(0) (Just use symbols). (b) Develop an equation for shear stress in the fluid at the wall of the pipe (Just use symbols). (c) If the given profile persists a distance L along the pipe, what is the force on the wall due to the moving water and what is its direction? (Hint: The force on the wall is equal in magnitude but in the opposite direction of that in the fluid.)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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