Aerodynamics Flashcard Chapter 2

Front

What is the movement of air particles in a certain direction called?

Back

Airflow

Front

What type of flow consists of layers with no influence from other layers?

Back

Laminar Flow

Front

What happens to the drag when laminar flow becomes turbulent flow?

Back

It increases suddenly

Front

What is the area called where the fluid velocity is zero on a body in fluid flow?

Back

Stagnation Point

Front

What do vortex generators do on an aircraft's wings?

Back

Regulate airflow

Front

What principle explains that an increase in fluid velocity causes a decrease in pressure?

Back

Bernoulli's Principle

Front

What is the term for the ratio of length to breadth in a streamlined body?

Back

Fineness Ratio

Front

What type of drag is caused by the lift produced by an airfoil?

Back

Induced Drag

Front

What happens to lift when ice accumulates on an aircraft's wings?

Back

It decreases

Front

What is the purpose of washout in aircraft wings?

Back

Improve stability