pressure wave


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Related to pressure wave: compression wave

pressure wave

[′presh·ər ‚wāv]
(meteorology)
A wave or periodicity which exists in the variation of atmospheric pressure on any time scale, usually excluding normal diurnal or seasonal trends.
(physics)
References in periodicals archive ?
The simplest idea is to base the 'coherent theory' on existing mathematical models (action potential, the pressure wave in the axoplasmic fluid, and the mechanical wave in the surrounding biomembrane, see above) but introducing the coupling forces like it is done in continuum mechanics [64].
As can be seen, due to the expanding front of the pressure wave, the amplitude of the wave reduces as the wave travels further from the center of the domain.
Because of the nature of the pressure wave, the global parameter estimation strategy can be of two types: morphological, where the coefficients (only E in this case) are modified to obtain a wave whose morphology properly fits the shape of the acquired signal; or parametric, where a set of parameters is calculated from the acquired signal and the model output is modified to match those parameters.
Therefore, the mechanism producing strong pressure waves and knock was investigated in this study by using a supercharged, optically accessible test engine to generate a wide range of knock intensities from weak to strong knock.
Investigations of the characteristics of pressure waves, which are generated, for example, by an electric discharge in a liquid, involve recording the total profile of the pressure wave at a given point in the volume of the liquid.
Figure 4 shows the pressure waves of the floating pulse and sunken pulse generated by the simulator.
These findings are different from most published data, which show the brachial systolic BP higher than CSBP because of peripheral pressure wave amplification [13, 27].
Zhang, "Characteristics of pressure wave in common rail fuel injection system of high-speed direct injection diesel engines," Advances in Mechanical Engineering, vol.
Radar antennas will log the pulse pressure wave that occurs with each heartbeat; algorithms will then derive blood pressure by considering the speed of this wave over the distance between the two antennas.
[USPRwire, Tue Nov 10 2015] Leak Detection Market for Oil & Gas by Technology (Negative Pressure Wave, E-RTTM, Fiber Optic Cables, Vpor Sensing Tubes, Mass-Volume Balance Method, and Others), by Type (Upstream, Midstream and Downstream) and Region (America, Europe, Middle East and Africa) - Global Forecast to 2020
where [V.sub.w] = velocity of the pressure wave in the line, in feet per second; K = bulk modulus of water (300,000 lbs./sq.

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