5.12 Fluid flow and Aerodynamics Quiz

What are the flow characteristics around a two-dimensional shape that learners should be able to explain?

• Pressure, temperature, humidity, and altitude

• Laminar, turbulent, vortices, separation points

• Density, viscosity, thermal conductivity, specific heat

• Compression, expansion, advection, convection

Which principles of aerodynamics should learners be able to explain by the end of the session?

• Velocity, acceleration, force, and mass

• Drag, thrust, lift, and weight

• Drag, thrust, lift, and momentum

• Pressure, temperature, density, and energy

What is laminar flow in fluid dynamics?

• A flow with high levels of turbulence and mixing

• A flow where the fluid moves in a chaotic manner

• A flow where the fluid moves in parallel layers with no disruption between the layers

• A flow characterized by rapid changes in pressure and velocity

What is turbulence in the context of fluid flow?

• The movement of fluid in parallel layers without any disruption

• The orderly movement of fluid particles in a single direction

• The opposite of laminar flow, involving irregular fluctuations or mixing

• The point at which the boundary layer leaves the surface of a solid body

What is a vortex in fluid dynamics?

• A stable region where fluid particles do not move

• A region in a fluid where the flow revolves around an axis, often found in laminar flow

• A region in a fluid where the flow revolves around an axis, often found in turbulent flow

• The position at which the boundary layer leaves the surface of a solid body

What is the separation point in fluid flow?

• The point at which fluid particles start moving in parallel layers

• The point at which the boundary layer leaves the surface of a solid body

• The point at which turbulence in the fluid begins

• The point at which vortices in the fluid are formed

Which of the following best describes laminar flow?

• Flow with chaotic changes in pressure and velocity

• Flow with layers moving smoothly and in parallel

• Flow with circular patterns and eddies

• Flow with high turbulence and low viscosity

What is a characteristic of turbulent flow?

• Smooth layers with no mixing between them

• Predictable velocity and direction

• Irregular flow with random variations in pressure and flow velocity

• Uniform flow in one direction

What is the term used to describe the area where the fluid flow separates from the surface of a 2D object?

• Vortices

• Direction of fluid flow

• Separation point

• Region of laminar flow

In the diagram, what is the term for the area where the flow is smooth and parallel?

• Region of turbulence

• Separation point

• Vortices

• Region of laminar flow