Standing waves arise from counter-propagating reflections with no net energy flow
Evidence
Standing waves occur when sound waves bounce between reflecting surfaces. The simplest system in which this can occur consists of two reflecting boundaries, as shown in Figure 1.30. In this system, the sound wave shuttles backward and forward between the two reflecting surfaces. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 386 (
#exemplifies, via linked claim)
Categorization
- XREF: connects to: A closed pipe end reflects a pulse with no energy loss without moving; An obstacle’s edge acts as a new point source emitting circular waves; Waves split into reflected and refracted parts at impedance-mismatched interfaces (+16 more)
Broader Connections
- Sound waves reflecting between two boundaries can form standing waves
#exemplifies(0.90) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 386 - Standing waves can form without two bounding reflectors
#qualifies(0.85) - Impedance discontinuities split an arriving wave into reflected and transmitted parts
#corroborates(0.85) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 235 - One closed and one open pipe end supports only odd quarter-wavelength standing waves
#exemplifies(0.85) - Standing waves arise when wall spacing equals half-wavelength multiples
#expands(0.80) - Pressure nodes and antinodes structure inside standing waves have complementary velocity counterparts
#expands(0.80) - A standing wave is still moving at normal speed while appearing stationary
#qualifies(0.80) — David Howard, Jamie Angus, coustics and Psychoacoustics, 383 - Waves transitioning from bounded to unbounded space create interfering reflections
#complicates(0.75) - Standing waves occur at all multiples of the lowest resonant frequency
#expands(0.75) - Supported standing-wave frequencies in bounded systems occur at odd multiples of the lowest
#expands(0.75) - Standing waves are a subclass of the more general phenomenon called resonant modes
#expands(0.70)