Fluid Machinery memorization stuff

m(dot) aka mass flow rate

(rho)VA

M dot aka mass flow rate units

Kg/s

Units of force

kg x (m/s²)

Force in terms of mass flow rate equation

m(dot) x V [kg/s x m/s]

head loss (hL) equation

f(L/D)(V²/2) or change in pressure / rho

V(dot) aka volumetric flow rate units

m³ / s or gpm

How to find velocity from volumetric flow rate

V(dot) / A

How to find m dot with v dot

rho x v dot

ReD equation, with velocity

((rho)V(dash)(D))/mu

ReD equation, with mass flow rate

(4(m dot)) / ((pi)(D)(mu))

Equation for f for laminar [not force that fluid mechanics thing related to Red)

64/Red

Equation for f for all pipes, laminar and turbulent

1/(sqrt(f)) = -1.8log[((e/D/3.7)^1.11 + (6.9/ReD)]. Can eliminate ((e/D/3.7)^1.11 if smooth pipe as e is a factor of roughness.

Equation for work using volumetric flow rate

change in pressure x volumetric flow rate

Above what Red value is a flow turbulent?

4,000