coefficient of discharge

coefficient of discharge

[¦kō·ə′fish·ənt əv ′dis‚chärj]
(fluid mechanics)

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 ?
The effective leakage area of Equation 2 can be converted to the coefficient of discharge with Equation 3 (ASHRAE 2005):
Orifice metering relies on the Reynolds Law of Similarity to predict the meter's coefficient of discharge and control its measurement accuracy (Figure 1).
Effect of Number and Thickness of Vortex breaker on the coefficient of discharge in shaft spillway, National Conference of Water, Soil, Plant Science and Agricultural Machinery in IAU Dezful Branch.
7] investigated the coefficient of discharge for a combined rectangular weir and semi-circular gate.
The filling patterns of various aluminum gating systems for sand casting recently were investigated by observing both water modeling and molten aluminum via a new video capturing technique, allowing each systems' coefficient of discharge to be measured.
The coefficient of discharge of the melt from the skull crucible in relation to the powder plasma arc is shown in Fig.
I] coefficient of discharge in the section offered by the needle;
The coefficient of discharge for well-designed, small nozzles varies from about 0.
3]) suggested that by increasing the radius of the bend R/d in shaft spillway, the coefficient of discharge increases, while by increasing depth of submergence, the coefficient of discharge is decreasing [3].
The advantage, however, is that the meter should have the correct coefficient of discharge (Cd) with this methodology.

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