Viscous Flow Over a Flat Surface Part II

The fluid adjacent to a stationary wall has zero velocity due to?

• On-slip boundary condition

• Slip-on boundary condition

• No-slip boundary condition

• Anti-slip boundary condition

The boundary layer thickness is the distance from the wall to the location where the velocity is ___% of the free stream velocity.

What happens to the shear stress in the near-wall region when the boundary layer changes from laminar to turbulent?

• Increases

• Decreases

• Remains constant

• Becomes zero

Where is the trailing edge located on a plate?

• Starting point

• Quarter point

• Midpoint

• End point

How many zones is the turbulent boundary layer made up of?

• 1

• 2

• 3

• 4

Which of the following statements is correct for a turbulent flow?

• Instantaneous velocity = mean velocity - fluctuating velocity

• Instantaneous velocity = mean velocity + fluctuating velocity

• Instantaneous velocity + fluctuating velocity = mean velocity

• Instantaneous velocity = mean velocity