Practice Shear Strain (10.1.4) - Motion and Deformation of Fluid Particle

Practise this section

8 questions

Flashcard drill
5 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is shear strain?
Show hintHide hint
It relates to deformation without volume change.
Question 2.
Define boundary layer.
Show hintHide hint
Think about fluid layers close to a surface.
3Question 3.
What is vorticity a measure of?
- Velocity
- Rotation of fluid elements
- Pressure
Show hintHide hint
Think about what describes the motion of particles in flow.
4Question 4.
True or False: All flow is either completely rotational or completely irrotational.
- True
- False
Show hintHide hint
Consider scenarios with varying velocity gradients.
Question 5.
Given a flow with velocity components u = 2xy, v = -x^2, determine the location of irrotational flow.
Show hintHide hint
Recall that vorticity is defined as the curl of the velocity field.
Question 6.
In an engineered system, a turbine encounters a boundary layer that increases drag by 15%. Discuss possible methods to reduce this effect.
Show hintHide hint
Think about shapes and surfaces that disrupt flow optimally.

4 more questions in this section. Enroll free to practise them all.