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Questions and Answers
What causes the almost uniform velocity in turbulent flow compared to laminar flow in a pipe?
What causes the almost uniform velocity in turbulent flow compared to laminar flow in a pipe?
- Reduction in fluid density
- Decrease in pipe radius
- Dominance of inertia forces over viscous forces (correct)
- Increase in pipe length
In the velocity profile for laminar and turbulent flows, where is the maximum velocity (umax) located?
In the velocity profile for laminar and turbulent flows, where is the maximum velocity (umax) located?
- At the outlet of the pipe
- At the inlet of the pipe
- At the pipe wall
- At the center of the pipe (correct)
What is the average velocity (Vavg) in relation to the maximum velocity (umax) for the entire stream flowing through the pipe?
What is the average velocity (Vavg) in relation to the maximum velocity (umax) for the entire stream flowing through the pipe?
- Precisely one half of the maximum velocity (correct)
- Dependent on the pipe diameter
- Dependent on the fluid viscosity
- Twice the maximum velocity
What causes pressure losses in a pipe when fluid flows through it?
What causes pressure losses in a pipe when fluid flows through it?
What is the relationship between pressure drop () and the change in pressure of the fluid as it flows through the length L?
What is the relationship between pressure drop () and the change in pressure of the fluid as it flows through the length L?
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