Aerodynamics Flashcards
What is laminar flow?
Occurs when a fluid flows in parallel layers, with no disruption between the layers.
Laminar flow is characterized by smooth and orderly movement of fluid.
What is turbulence?
Irregular fluctuations or mixing during the movement of the fluid.
Turbulence is the opposite of laminar flow and is often associated with chaotic changes in pressure and flow velocity.
Define a vortex.
A region in a fluid in which the flow revolves around an axis.
Vortices can move, stretch, twist, and interact in complex ways, often found in turbulent flow.
What is the separation point in fluid dynamics?
The position at which the boundary layer leaves the surface of a solid body.
This point is crucial in determining the behavior of fluid flow around objects.
What does aerodynamics study?
The motion of air when affected by a solid object, such as an aircraft wing.
Understanding aerodynamics is essential for optimizing the design and performance of aircraft.
How does air flow affect aircraft performance?
The way in which the air flows determines the performance of the aircraft.
Proper management of airflow can enhance lift and reduce drag.
What is drag?
The force that opposes movement through the air.
Drag is a critical factor in aerodynamics, affecting fuel efficiency and speed.
What is thrust?
The force that pushes an aircraft forward.
Thrust must overcome drag for an aircraft to accelerate and maintain speed.
What is lift?
The force that causes an aircraft to rise.
Lift is generated by the difference in air pressure on the upper and lower surfaces of the wings.
Fill in the blank: The _______ is the force that opposes movement through the air.
drag
Fill in the blank: The _______ is the force that pushes an aircraft forward.
thrust
Fill in the blank: The _______ is the force that causes an aircraft to rise.
lift
