overpressure

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o·ver·pres·sure

(ō′vər-prĕsh′ər)
n.
1. A transient air pressure, such as the shock wave from an explosion, that is greater than the surrounding atmospheric pressure.
2. Geology Pore or subsurface pressure that exceeds normal hydrostatic pressure at a given depth.
tr.v. o·ver·pres·sured, o·ver·pres·sur·ing, o·ver·pres·sures
To cause or subject to overpressure.

o′ver·pres′sur·i·za′tion (-ĭ-zā′shən) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

overpressure

(ˈəʊvəˌprɛʃə)
n
(Military) the blast effect of a nuclear weapon expressed as an amount of pressure greater than normal barometric pressure
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

overpressure

The pressure resulting from the blast wave of an explosion. It is referred to as "positive" when it exceeds atmospheric pressure and "negative" during the passage of the wave when resulting pressures are less than atmospheric pressure.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun 1. overpressure - a transient air pressure greater than the surrounding atmospheric pressure; "the overpressure of the blast kills by lethal concussion"
air pressure, atmospheric pressure, pressure - the pressure exerted by the atmosphere
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive ?
This zone is subjected to significantly high overpressures. The velocity of moving air-over-pressure fronts is also more than the P-wave velocity of the ground [3-6].
Blast dampers can be surface mounted for low overpressures. For high overpressures, they require attachment to a properly designed structural element.
The sensors offer high overpressures (typically three times the nominal pressure rating) for applications where pressure spikes or peaks are likely to occur.
Swagelok RHPS series PRV model proportional relief valves provide proportional venting of overpressures for piping systems up to 1 in.
The rate of pressure increase can be linearly expressed through the incident overpressure using two simple assumptions: the similarity between reflected [P.sub.r,max] and incident [P.sub.i,max] overpressures and reflected [i.sub.r] and incident [i.sub.i] impulses; and the similarity between reflected and incident overpressures and reflected and incident rise time [t.sub.rise].
The thermal energy delivered to regions experiencing similar peak overpressures varies with bomb yield.
In the experiment, it made analysis of the shockwave overpressures at different testing points in the circumstances of seven bifurcation pipelines and three kinds of distinct gas-filling amount.
The device endures overpressures up to 2x (F.S.) and has a rated operating temperature from -40[degrees]F to 185[degrees]F.
The unit is said to endure overpressures up to 2x (F.S.) and has a rated operating temperature of -40[degrees]F to 185[degrees]F.
The available tools must be shown to predict inlet overpressures, caused by engine surge, within acceptable accuracy.

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