Viscous Flow Over a Flat Surface Part 1

What type of drag is associated with the viscous shear stress distribution?

• Form drag

• Skin friction drag

Couette flow refers to the

• Flow down an inclined plane

• Flow between two stationary parallel plates

• Flow produced by a moving plate

• Flow in a round pipe

For a uniform and steady laminar flow,

• The velocity changes with time

• The velocity changes with space

• The velocity is zero

• The acceleration is zero

Which of the following are correct for a flow down an inclined plane?

• The flow velocity at the plate surface is zero

• The flow velocity at the free surface is zero

• The pressure varies along the free surface

• The pressure is constant along the free surface

Which of the following is correct for a Couette flow?

• The velocity profile is parabolic

• The developed velocity profile is valid for a turbulent flow

• The velocity of the fluid adjacent to the plate surface follows the plate velocity

• The pressure changes in the direction of flow