Module 3B

Question 1

when fluid flows, there will be an x-directed shear of friction forces is present

Answer 1

friction forces (Fxs)

Question 2

resultant forces

Answer 2

Rx

Question 3

what are the assumptions in bernoulli’s equation?

Answer 3

1. inviscid flow (no shear stress)
2. constant density
3. steady flow
4. along a streamline
5. applied in an inertial reference frame

Question 4

what are the uses of the increase in ME due to pump?

Answer 4

1. maintain the flow
2. provide KE
3. offset frictional losses
4. increase PE

Question 5

for steady state, it is the work done by the fluid

Answer 5

boundary work

Question 6

energy converted to work is lost in?

Answer 6

Mechanical Energy

Question 7

it is the sum of all frictional losses

Answer 7

frictional losses

Question 8

what is alpha?

Answer 8

kinetic energy velocity correction

Question 9

it is used to increase mechanical energy of flowing fluid

Answer 9

Pump

Question 10

x-directed force caused by gravity acting on the mass M in a controlled volume

Answer 10

solid surface force

Question 11

represented by Wp

Answer 11

pump

Question 12

x-directed force caused by gravity acting on the mass M in a controlled volume

Answer 12

body forces (Fxg)

Question 13

x-directed forces caused by pressure forces acting on the surface of the fluid system

Answer 13

pressure forces (Fxp)