surge (redirected from surges)

surge

See power surge.

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surge

1. the rolling swell of the sea, esp after the passage of a large wave

2. Nautical a temporary release or slackening of a rope or cable

3. a large momentary increase in the voltage or current in an electric circuit

4. an upward instability or unevenness in the power output of an engine

5. Astronomy a short-lived disturbance, occurring during the eruption of a solar flare

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surge [sərj]

(astrophysics)

An unusually violent solar prominence that usually accompanies a smaller flare, consisting of a brilliant jet of gas which shoots out into the solar corona with a speed on the order of 180 miles (300 kilometers) per second and reaches a height on the order of 60,000 miles (100,000 kilometers).

(electricity)

A momentary large increase in the current or voltage in an electric circuit.

(engineering)

An upheaval of fluid in a processing system, frequently causing a carryover (puking) of liquid through the vapor lines.

The peak system pressure.

An unstable pressure buildup in a plastic extruder leading to variable throughput and waviness of the hollow plastic tube.

(fluid mechanics)

A wave at the free surface of a liquid generated by the motion of a vertical wall, having a change in the height of the surface across the wavefront and violent eddy motion at the wavefront.

(oceanography)

Wave motion of low height and short period, from about ½ to 60 minutes.

storm surge

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SURGE - Sorter, Updater, Report Generator, Etc. IBM 704, 1959. Sammet 1969, p.8.