discharge coefficient

discharge coefficient

[′dis‚chärj ‚kō·i′fish·ənt]
(fluid mechanics)
In a nozzle or other constriction, 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 pressure. Also known as coefficient of discharge.

coefficient of discharge

1.The ratio of the actual discharge of water through an opening to its corresponding theoretical value.
2. The ratio of effective area to the free area of an air diffuser.
References in periodicals archive ?
5% uncertainty on the discharge coefficient of the Venturi tube.
The reason for the failure, the analysis report revealed, was that one of the propellant regulators had a manufacturing defect of a "much higher discharge coefficient in its closed condition", which escaped the inspection and acceptance test procedure.
v] are discharge coefficient and effective area of the check valves and/or orifices, respectively; and [rho] is the fluid density.
In this equation, discharge coefficient (Cd) was used to compensate other minor losses.
Discharge Coefficient, Flow Exponent, and Leakage Area C, n, Flow Coefficient, Flow Exponent [m.
f] is discharge coefficient of the sudden contraction of the flow channel determined by the ratio of area before and after the contractive flow channel, d is diameter of cushion hole, and [DELTA]p is differential pressure between the contractive sections equaling the pressure in cushion chamber minus the pressure in plunger chamber.
The most effective method of controlling vortex is using anti-vortex blades which are used to increase the discharge coefficient of the shaft spillways [2].
In addition, the meter discharge coefficient is constant from 75,000 pipe Reynolds number and above;
There was no study on the discharge coefficient of the openings, but the author recommends a value of 0.
The influence of the internal geometry of the orifice on the flow regime and on the discharge coefficient were analysed (Anantharamaiah et al.
For given angle [alpha] from figure 2, geometric constant K and subsequently discharge coefficient [C.