C3 - Bernoulli's Principle Flashcards
Where is fluid velocity greatest in a pipe?
In the middle of the pipe
What is true about the velocity of a fluid in the middle of a pipe?
The velocity is greatest
What is constant for a fluid flowing through a pipe?
The mass flow rate
What is true about the mass flow rate of a fluid in a pipe?
The mass flow rate is constant
What happens to the velocity of a fluid flowing through a pipe when the pipe becomes narrower?
The velocity increases
What would cause the velocity of a fluid flowing through a pipe to increase?
The pipe becoming narrower
What happens to the velocity of a fluid flowing through a pipe when the pipe becomes wider?
The velocity decreases
What would cause the velocity of a fluid flowing through a pipe to decrease?
The pipe becoming wider
What does Bernoulli’s principle state?
If velocity increases then pressure decreases
According to Bernoulli’s principle, what happens when velocity increases?
Pressure decreases
According to Bernoulli’s principle, what happens when velocity decreases?
Pressure increases
According to Bernoulli’s principle, what causes pressure to increase?
Velocity decreasing
According to Bernoulli’s principle, what happens when pressure decreases?
Velocity increases
Where is airflow fastest across a wing?
On the top of the wing
Where is airflow fastest across a spoiler?
On the bottom of the spoiler
What is true about the airflow across the top of a wing compared to the bottom of the wing?
Airflow is faster at the top
What is true about the airflow across the top of a spoiler compared to the bottom of the spoiler?
Airflow is slower at the top
Why is the airflow faster over the top of a wing compared to the bottom?
The air has to travel further over the top
Why is the airflow faster over the bottom of a spoiler compared to the top?
The air has to travel further over the bottom
Air has to travel further over the top of a wing than over the bottom. What is the consequence of this?
Airflow is faster at the top
Where is the pressure lowest on a wing?
At the top
Why does is the airflow faster over the top of a wing compared to the bottom of a wing?
The air has to travel further over the top
Why does is the airflow faster over the top of a wing compared to the bottom of a wing?
The air has to travel further over the top
Air has to travel further over the top of a wing than over the bottom. What is the consequence of this?
Airflow is faster at the top
Air has to travel further over the bottom of a spoiler than over the top. What is the consequence of this?
Airflow is faster at the bottom
Where is the air pressure greatest on a wing?
On the bottom
Compare the air pressure on the top of a wing to the bottom of a wing
Air pressure is greatest on the bottom
Where is the air pressure greatest on a spoiler?
On the top
Compare the air pressure on the top of a spoiler to the bottom
Air pressure is greatest on the top
