An experimental and numerical investigation is conducted on low‐speed flow over a cavity. The production of discrete tones and development of complex flow structures are studied for deep cavities with leading edge overhangs. Experimental results indicate that multiple discrete frequency tones are produced simultaneously or intermittently. The frequency characteristics and maximum sound pressure level depend on the leading edge overhang geometry. The onset of instability and production of multiple tones appear to be affected by boundary layer thickness. Numerical studies show a complex periodic vortex structure in the cavity mouth region, with a period equal to that measured for the dominant tone in the experiments. The vortex structure is affected by the leading edge overhang geometry. Mass addition and extraction from the cavity appear to be controlled by the vortex structure in the cavity mouth, which may explain the effect of lip geometry on peak sound pressure levels in the cavity.
Skip Nav Destination
Article navigation
May 2000
Meeting abstract. No PDF available.
May 01 2000
An experimental and numerical investigation of sound produced by low‐speed flow over a cavity with a leading edge overhang
Brenda S. Henderson;
Brenda S. Henderson
Mech. Eng. Dept., Kettering Univ., 1700 W. 3rd Ave., Flint, MI 48504‐4898, bhenders@kettering.edu
Search for other works by this author on:
Homayun K. Navaz;
Homayun K. Navaz
Mech. Eng. Dept., Kettering Univ., 1700 W. 3rd Ave., Flint, MI 48504‐4898, bhenders@kettering.edu
Search for other works by this author on:
Raymond Berg
Raymond Berg
Mech. Eng. Dept., Kettering Univ., 1700 W. 3rd Ave., Flint, MI 48504‐4898, bhenders@kettering.edu
Search for other works by this author on:
J. Acoust. Soc. Am. 107, 2824 (2000)
Citation
Brenda S. Henderson, Homayun K. Navaz, Raymond Berg; An experimental and numerical investigation of sound produced by low‐speed flow over a cavity with a leading edge overhang. J. Acoust. Soc. Am. 1 May 2000; 107 (5_Supplement): 2824. https://doi.org/10.1121/1.429115
Download citation file:
43
Views
Citing articles via
A survey of sound source localization with deep learning methods
Pierre-Amaury Grumiaux, Srđan Kitić, et al.
Recommendations on bioacoustical metrics relevant for regulating exposure to anthropogenic underwater sound
Klaus Lucke, Alexander O. MacGillivray, et al.
Related Content
A numerical and experimental investigation into the effects of cavity geometry on the production of cavity tones
J Acoust Soc Am (February 1999)
Broadband sound transmission loss of a large-scale membrane-type acoustic metamaterial for low-frequency noise control
Appl. Phys. Lett. (July 2017)
On the diffusion of sound in an auditorium
J Acoust Soc Am (September 2005)
Design of ultrasonic standing wave levitation support for three-dimensional printed filaments
J. Acoust. Soc. Am. (April 2021)
Self‐excited depth‐mode resonance for a wall‐mounted cavity in turbulent flow
J Acoust Soc Am (September 1978)