acoustic resonance


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acoustic resonance

[ə′küs·tik ′rez·ə·nəns]
(acoustics)
A phenomenon exhibited by an acoustic system, such as an organ pipe or Helmholtz resonator, in which the response of the system to sound waves becomes very large when the frequency of the sound approaches a natural vibration frequency of the air in the system.
References in periodicals archive ?
To reduce acoustic resonance by the wing cascade, an acoustically transparent structure was developed and installed on all dampers and airfoils.
In addition, acoustic resonance in the direction of cavity depth occurs in the flow over the cavity with D/L = 2.
The test section was terminated in a spanwise manner by the end walls composed of acrylic plate and porous plate to visualize the flow within the cavity and suppress acoustic resonance in the spanwise direction.
To confirm the occurrence of the acoustic resonance in the cavity flow with D/L = 2.
3% for the cavity flow without acoustic resonance (D/L = 0.
0%) for both cavity flows with and without acoustic resonance.
0% particularly in the cavity flow with acoustic resonance.
5 and y = 0), where large-scale vortices are observed without freestream turbulence, for the cavity flow without acoustic resonance and that with acoustic resonance, respectively.
The finishing processes included in the production of bells remain tedious and manual tasks, and because fine grain structure is critical to the acoustic resonance of the instrument, scrap is common.
Nevertheless, sound from the flame will excite structural or acoustic resonances at certain frequencies.
Tenders are invited for Scientific & Industrial Research, intends to procure a Sound Measurement System required to use microphone to excite and detect the acoustic resonances in quasi spherical resonances with an inert gas atmosphere for accurate determination of Boltzmann Constant with a prospect of new definition of the unit of thermodynamic temperature, Kelvin.

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