wave group velocity

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• Group velocity — [ Frequency dispersion in bichromatic groups of gravity waves on the surface of deep water. The red dot moves with the phase velocity, and the green dots propagate with the group velocity. In this deep water case, the phase velocity is twice the… …   Wikipedia

• group velocity — noun the propagation velocity of the envelope of a modulated travelling wave, which is considered as the propagation velocity of information or energy contained in it …   Wiktionary

• group velocity — noun : the velocity with which some definite peculiarity of a composite wave train (as an interference maximum) advances through a medium compare phase velocity …   Useful english dictionary

• group velocity — noun Physics the speed at which the energy of a wave travels …   English new terms dictionary

• Wave propagation — is any of the ways in which waves travel through a waveguide.With respect to the direction of the oscillation relative to the propagation direction, we can distinguish between longitudinal wave and transverse waves.For electromagnetic waves,… …   Wikipedia

• Wave velocity — is a wave property, which may refer to: *phase velocity, the velocity at which a wave phase propagates at a certain frequency *group velocity, the propagation velocity for the envelope of wave groups and often of wave energy, different from the… …   Wikipedia

• Wave — A wave is a disturbance that propagates through space and time, usually with transference of energy. While a mechanical wave exists in a medium (which on deformation is capable of producing elastic restoring forces), waves of electromagnetic… …   Wikipedia

• wave — waveless, adj. wavelessly, adv. wavingly, adv. wavelike, adj. /wayv/, n., v., waved, waving. n. 1. a disturbance on the surface of a liquid body, as the sea or a lake, in the form of a moving ridge or swell. 2. any surging or progressing movement …   Universalium

• Wave — /wayv/, n. a member of the Waves. Also, WAVE. [1942; see WAVES] * * * I In oceanography, a ridge or swell on the surface of a body of water, normally having a forward motion distinct from the motions of the particles that compose it. Ocean waves… …   Universalium

• Wave shoaling — In fluid dynamics, wave shoaling is the phenomenon that surface waves on a water layer of decreasing depth change their wave height (which is about twice the amplitude). It is caused by the fact that the group velocity, which is also the wave… …   Wikipedia

• Wave packet — In physics, a wave packet is an envelope or packet containing an arbitrary number of wave forms. In quantum mechanics the wave packet is ascribed a special significance: it is interpreted to be a probability wave describing the probability that a …   Wikipedia