Sahithyan's S1 -- Fluid Mechanics
Conservation Laws
In fluid dynamics, 4 laws are used to analyse the fluid flow.
- Laws of mechanics
- Conservation of mass
- Conservation of energy
- Conservation of momentum
These laws are applied to a specific volume of the fluid in motion, and it’s called as control volume.
Control volume
A volume, through which a fluid flows.
- It’s a fixed volume
- Can either be real or imaginary
Conservation of mass
Mass cannot be created nor destroyed.
Conservation of energy
Energy cannot be created nor destroyed, but can be converted from one form to another.
Conservation of momentum
Unless a resultant force is exerted on a mass, it cannot gain or lose momentum.