DMT 1 - 10

Question 1

What is Bernoulli’s Equation?

Answer 1

BE is a simple and easy to use relation between the pressure, velocity and elevation in a moving fluid

Question 2

What is BE for steady, incompressible and inviscid flows?

Answer 2

𝑃+ (𝜌𝑣^2)/2+𝜌𝑔𝑧=

𝐶𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝑎𝑙𝑜𝑛𝑔 𝑎 𝑠𝑡𝑟𝑒𝑎𝑚𝑙𝑖𝑛𝑒

Question 3

What is BE for two points on a streamline?

Answer 3

𝑃_1+(𝜌〖𝑣_1〗^2)/2+𝜌𝑔𝑧_1= 𝑃_2+(𝜌〖𝑣_2〗^2)/2+𝜌𝑔𝑧_2

Question 4

What can Bernoulli’s Equation be translated as?

Answer 4

“Work done on a fluid particle by pressure and gravity forces is equal to the change in its kinetic energy”

Question 5

Which part of BE represents Stagnation pressure?

Answer 5

𝑃+ (𝜌𝑣^2)/2

Question 6

What does Stagnation Pressure represent?

Answer 6

Stagnation pressure represents the pressure at a point where the fluid is brought to a complete stop isentropically

Question 7

Dive an example of Stagnation pressure?

Diagram

Answer 7

_____

Question 8

What is the Pitot Tube with Piezometer Equation?

Answer 8

𝑣= √((2 (𝑃_𝑠𝑡𝑎𝑔 −𝑃))/𝜌)= √2𝑔∆ℎ

Question 9

Draw a diagram to represent this Equation?

Answer 9

_____

Question 10

What are the 6 limitations of BE?

1 - 3

Answer 10

Steady Flow
Frictionless Flow
Incompressible Flow