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Questions and Answers
What is the main implication of uniform flow?
What is the main implication of uniform flow?
- Velocity, pressure, and temperature are constant throughout the fluid (correct)
- Velocity, pressure, and temperature vary with position
- Pressure is constant but velocity and temperature vary
- Velocity varies but pressure and temperature remain constant
Why does the flow near the walls of a wind tunnel not remain uniform?
Why does the flow near the walls of a wind tunnel not remain uniform?
- As a result of changes in pressure along the walls
- Because the wind tunnel walls are not smooth
- Due to the presence of a boundary layer (correct)
- Because the air flow is not properly regulated
How is the flow just downstream of a well-rounded pipe entrance described?
How is the flow just downstream of a well-rounded pipe entrance described?
- Highly variable in velocity and pressure
- Nearly uniform, except for a very thin boundary layer near the wall (correct)
- Completely turbulent with no uniformity
- Uniform throughout due to the rounded pipe entrance
Why is it common to approximate the flow in ducts and pipes as uniform in engineering practice?
Why is it common to approximate the flow in ducts and pipes as uniform in engineering practice?
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