Y4 Boundary Layer Quiz

Y4 Boundary Layer Quiz

University

10 Qs

quiz-placeholder

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Y4 Boundary Layer Quiz

Y4 Boundary Layer Quiz

Assessment

Quiz

Physics

University

Practice Problem

Hard

Created by

Stephanie Docherty

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A boundary layer forms at a surface due to:

Shear stresses in the fluid.

Normal pressures acting on the surface.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distance normal to the wall to a point where the flow velocity has essentially 0.99 of the freestream velocity is called the:

displacement thickness

momentum thickness

boundary layer thickness

friction thickness

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which do you think is larger?

the displacement thickness

the momentum thickness

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ignoring viscous effects will result in:

Inaccurate predictions of pressure drag only.

Inaccurate predictions of skin friction drag only.

Inaccurate predictions of skin friction drag, pressure drag, and lift.

Inaccurate predictions of lift only.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This expression applies for _____ boundary layers.

laminar

turbulent

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For flow over a flat plate, the transition region is large compared with the laminar and turbulent regions.

True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which thickness is representative of the friction force experienced by the fluid in the boundary layer?

The physical boundary layer thickness.

The displacement thickness.

The momentum thickness.

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