Recent Examples of pressure wave from the Web
The flame spreads from the plug out and down, creating a pressure wave moving opposite the rising piston.
The system’s sensors detect the first pressure waves to arrive from an earthquake, known as primary or P-waves, which cause minor shaking but little destruction.
So each seismometer can provide an estimate of the distance to the epicenter by measuring the time difference between the fast-moving p-wave (pressure wave) and the slower s-wave (shear wave).
Mazda exerts yet finer control over the blending between spark and compression ignition by altering the flame’s pressure wave using injection- and spark-timing adjustments.
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