Group Velocity / Phase Velocity Animation Case 1: Group Velocity larger than Phase Velocity | Part 1

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meyavuz
214.7 هزار بار بازدید - 12 سال پیش - 3 cases in one shot:
3 cases in one shot: Phase and Group Velocity: Multiple Sc...

Here, we demonstrate the group and phase velocity phenomena as observed when two signals with different temporal and spectral frequencies (wavelength) are added to each other. The addition creates time varying constructive and destructive interferences along the space and time. The resulting wave packet travels with the so-called group velocity which - in the above case - is faster than the phase velocity. The wave packet envelope is shown in magenta color in dashed lines. Note that in this particular case, both group and phase velocities are positive.

An important interpretation of group velocity is that it represents the velocity at which the energy or information is conveyed along a wave (see Wikipedia for further details).

For the other videos in the series, check the following links:
Case 1: Group Velocity larger than Phase Velocity: (Wave component with smaller wavelength travels faster)
Group Velocity / Phase Velocity Anima...

Case 2: Zero Group Velocity
Group Velocity / Phase Velocity Anima...

Case 3: Negative Group Velocity
Group Velocity / Phase Velocity Anima...

Case 4: Zero Phase Velocity
Group Velocity / Phase Velocity Anima...

Case 5: Wave component with longer wavelength travels faster
Group Velocity / Phase Velocity Anima...

3 cases in one shot:
Phase and Group Velocity: Multiple Sc...

Групповая скорость, Gruppengeschwindigkeit, Voortplantingssnelheid, Velocidad de grupo, Grupa rapido, Vitesse de groupe, Velocità di gruppo, 군속도, מהירות חבורה, ჯგუფური სიჩქარე, 群速度, Gruppefart, Prędkość grupowa, Групова швидкість, 群速度, Vận tốc nhóm, Grupphastighet, Grupinis greitis

Phasengeschwindigkeit, Velocidad de fase, 相速度, Vitesse d'une onde, Velocità di fase, Фазовая скорость, 位相速度

Velocità di Fase e Velocità di Gruppo

#groupvelocity #phasevelocity #groupphase

Group velocity explanation, Phase velocity definition, Understanding group and phase velocity, Group and phase velocity relationship, Wave propagation and velocity, Difference between group and phase velocity, Calculating group velocity, Phase velocity in physics, Applications of group velocity, Wave mechanics and velocity
12 سال پیش در تاریخ 1391/11/01 منتشر شده است.
214,752 بـار بازدید شده
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