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Listening Quiz: Thảo Luận về Điều Kiện Biên cho Mô Phỏng Chất Lỏng – Medium Level
Th11 17, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà vật lý học (English for Physicist)
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1.
What are David and Jessica mainly discussing?
Which boundary conditions to use in a fluid simulation
How to design a pipe network for water delivery
How to measure pressure inside a real pipe
Why fluid velocity changes at the inlet
Explanation:
They talk about choosing velocity at the inlet, pressure at the outlet, no-slip walls, and initial conditions for a fluid simulation.
2.
What boundary condition does David say should be used at the outlet?
A velocity condition
A no-slip condition
A slip condition
A fixed pressure condition
Explanation:
David says, ‘Yes, a fixed pressure at the outlet is best.’
3.
According to David, what do no-slip walls mean?
The fluid starts with initial velocity
The fluid can slide without friction
The fluid has zero velocity at the wall
The pressure stays constant at the wall
Explanation:
David explains that no-slip walls mean ‘the fluid velocity is zero there.’
4.
Why does David say no-slip walls are better for realistic pipe flow?
Because they let the fluid move faster through the pipe
Because they make the simulation start with zero velocity
Because they remove the need for an outlet condition
Because they match real conditions inside pipes
Explanation:
David directly says no-slip walls are better because they ‘match real conditions inside pipes.’
5.
What does Jessica decide to set at the end of the conversation?
Slip walls, pressure inlet, and zero initial velocity
Fixed pressure inlet, no-slip outlet, and velocity walls
Pressure inlet, slip walls, and no initial conditions
Velocity inlet, pressure outlet, and no-slip walls
Explanation:
Jessica says, ‘I will set velocity inlet, pressure outlet, and no-slip walls.’
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Listening Lesson
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