Discharge coefficient
Encyclopedia
In a nozzle
or other constriction, the discharge coefficient (also known as coefficient of discharge) is the ratio of the mass flow rate
at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid
from the same initial conditions to the same exit pressures
Nozzle
A nozzle is a device designed to control the direction or characteristics of a fluid flow as it exits an enclosed chamber or pipe via an orifice....
or other constriction, the discharge coefficient (also known as coefficient of discharge) is the ratio of the mass flow rate
Mass flow rate
Mass flow rate is the mass of substance which passes through a given surface per unit time. Its unit is mass divided by time, so kilogram per second in SI units, and slug per second or pound per second in US customary units...
at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid
Working fluid
A working fluid is a pressurized gas or liquid that actuates a machine. Examples include steam in a steam engine, air in a hot air engine and hydraulic fluid in a hydraulic motor or hydraulic cylinder...
from the same initial conditions to the same exit pressures