1- Derive. From first principles eulers equation from the rate of change of momentum
2- Show by integration how Eulers equation derives Bernoullis equation
3- Explain the use of Eulers equation as applied to compressible fluids.
Many thanks for any help© BrainMass Inc. brainmass.com October 10, 2019, 3:57 am ad1c9bdddf
1- Derive. From first principles Euler's equation from the rate of change of momentum
2- Show by integration how Euler's equation derives Bernoulli's equation
3- Explain the use of Euler's equation as applied to compressible fluids.
1. The Euler's equation can be derived by applying the Newton's 2-nd law on a volume of an inviscid fluid (force = rate of change of momentum):
where sum of all forces acting on the considered volume of fluid
m = mass of the considered volume of fluid:
acceleration, ( 3)
The nature of the forces can be:
- external field (like gravity, electromagnetic etc.)
The integral of pressure on the surface  bounding the volume is given by:
The expert derives eulers equations.