Fluid Dynamics Flashcards
What is specific gravity?
The density with of a liquid sample compared to the density of water at 4 degrees
How to measure SG
Weight of sample / weight of equal vol of water
How to you measure SG
Hydrometer
Weight of water
1000
What is viscosity
Resistance of a fluid to change in shape.
Unit of viscosity
Ns/m^2
What is streamlining
Greatly decreasing the resistance
How to work out absolute pressure
P abs = Pg + Patm
What is 1 atm equal to
14.7 lbs/inch^2
760 mmH
29.92 inHg
What is Bernoulli principle
When energy is neither added to nor taken away from a fluid in motion, the PE or pressure decreases when the KE or V increases (The total pressure is constant )
What is fluid pressure
When the pressure exerted by a column is determined by the height.
In other words - higher the column = higher the pressure
What is pascals law
Equal pressure
What is a hydraulic jack
A form of fluid power systems
How to calculate Celsius
5/9 (f-32)
How to calculate farenheit
9/5 c+ 32
