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 ?
7] investigated the coefficient of discharge for a combined rectangular weir and semi-circular gate.
The advantage, however, is that the meter should have the correct coefficient of discharge (Cd) with this methodology.
The coefficient of discharge curve shown next is for a fabricated welded generic design.
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.
Using the actual velocity, the velocity coefficient of discharge was calculated.
Table 2 presents the gate velocity and velocity coefficient of discharge.
The conventional coefficient of discharge (CdV), calculated via the ratio of measured to theoretical velocity, is influenced by the following parameters:
The ratio of filled area over the total cross-sectional area of the gate is called areal coefficient of discharge and is less than or equal to one.
Gate Distance from Sprite--In each system, the areal coefficient of discharge is greater for the second gate than the first (except Systems 3A and 5A, with CdA = 1), due to back pressure from filling the runner.
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;

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