Quiz reviews

Question 1

Define a fluid

Answer 1

TBD

Question 2

Define a steamline

Answer 2

fixed lines in space and tangent to velocity vector at every point of a fixed time

Question 3

Define a material derivative of a property

Answer 3

time rate of change of a property associated with a particle along its pathline

Question 4

Change in temperature over a given period of time is called what?

Answer 4

local time derivative of temperature

Question 5

What is meant by a 1D flow in a streamline coordinate system?

Answer 5

property constant along streamlines and vary only along streamlines

Question 6

What does the statement “mass flux across a surface” mean?

Answer 6

amount of mass crossing the surface per unit time

Question 7

What is the average velocity of flow in a duct with volume flux Q across area A?

Answer 7

V = Q/A

Question 8

Write the expression of the volume flux across area A?

Answer 8

Q = integral of A of Velocity (V) times the unit vector (n)