Assumptions
These assumptions are made with this equation Pa-Pb=-ρ g(za-zb).
What is fluid in hydrostatic state, no acceleration, constant g, constant ρ ?
You can use f=64/Re when this situation is met
Equation that is used for manometer questions
What is the hydrostatic equation?
The term in the big equation that becomes change in mass flowrate times velocity at exit minus velocity at inlet m(V2-V1)
What is the last term (double integral over the surface of ρ V(Vr n)dA)?
The amount of pi groups that are needed
What is n-j (number of variables - number of dimensions)?
Term in the big equation that is eliminated with the assumption "neglect body forces"
What is the first term (triple integral over the volume of ρ gdV,)?
The difference between V and Vr
What is V is relative to the ground and Vr is relative to the control surface?
Kind of diagram needed for a gate question
What is a free body diagram?
You do this with the control volume when the object being examined is moving (like a rocket)
What is the control volume moving with the object (rocket)?
The meaning of NPSH
What is net positive suction head?
The three forms of similarity to assume
What is geometric similarity, dynamic similarity, kinematic similarity?
The difference between Colebrook and Haaland equations
What is Colebrook is exact and uses friction in two places where Haaland is an approximation?
What is a tainter gate?
The term that is effected in Beroulli's equation when there is an elbow in the pipe
What is the minor losses term?
The four dimensions and the abbreviations for them
What is Mass (M), Length (L), Time (T), Temperature (θ )