Research Papers: Fluid-Structure Interaction

Shear Layer Driven Acoustic Modes in a Cylindrical Cavity

[+] Author and Article Information
David B. Stephens

NASA Glenn Research Center,
Cleveland, OH 44070

Francisco R. Verdugo

Dipartimento di Ingegneria
Meccanica e Industriale,
Università degli Studi Roma Tre,
Via della Vasca navale,
Rome 79 - 00146, Italy

Gareth J. Bennett

Assistant Professor
Department of Mechanical and
Manufacturing Engineering,
Trinity College Dublin,
Dublin 2, Ireland
e-mail: gareth.bennett@tcd.ie

1This work was performed while the author was employed as a Visiting Scholar at Trinity College Dublin and is not a work of the U.S. Government.

2Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received September 13, 2013; final manuscript received February 13, 2014; published online August 19, 2014. Assoc. Editor: Samir Ziada.

J. Pressure Vessel Technol 136(5), 051309 (Aug 19, 2014) (8 pages) Paper No: PVT-13-1161; doi: 10.1115/1.4026866 History: Received September 13, 2013; Revised February 13, 2014

This paper describes the interior acoustic pressure of a cylindrical cavity driven by a shear layer. Existing cavity flow literature is generally focused on rectangular cavities, where the resonance is either longitudinal or the result of excited depth modes inside the cavity. The design of the present circular cavity is such that azimuthal duct modes can be excited in various combinations with depth modes depending on free stream velocity. An acoustic simulation of the system was used to identify the modes as a function of frequency when the system is driven by an acoustic point source. With appropriate manipulation of the free stream flow, abrupt mode switching and mode oscillation were both observed, and a condition with a dominant azimuthal mode was found. The strength of the lock-on was documented for the various resonance conditions, and the effects of the cavity opening size and location were studied.

Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.


Langtry, R. B., and Spalart, P. R., 2008, “DES Investigation of a Baffle Device for Reducing Landing-Gear Cavity Noise,” 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 7–10.
Balasubramanian, G., Crouse, B., and Freed, D., 2009, “Numerical Simulation of Leakage Effects on Sunroof Buffeting of an Idealized Generic Vehicle,” 15th AIAA/CEAS Aeroacoustics Conference, Miami, FL, May 11–13.
Nakiboglu, G., Belfroid, S. P. C., Tonon, D., Willems, J. F. J., and Hirschberg, A., 2009, “A Parametric Study on the Whistling of Multiple Side Branch System as a Model for Corrugated Pipes,” Proceedings of the ASME 2009 Pressure Vessels and Piping Division Conference, Prague, Czech Republic, July 26–30.
Aly, K., and Ziada, S., 2009, “Azimuthal Behavior of Self-Excited Diametral Modes of Internal Cavities,” Proceedings of the ASME 2009 Pressure Vessels and Piping Division Conference (PVP2009-77071), Prague, Czech Republic.
Rockwell, D., and Naudascher, E., 1978, “Review—Self-Sustaining Oscillations of Flow Past Cavities,” ASME J. Fluids Eng., 100, pp. 152–165. [CrossRef]
Rossiter, J. E., 1964, “Wind Tunnel Experiments on the Flow Over Rectangular Cavities at Subsonic and Transonic Speeds,” Reports and Memoranda No. 3438.
Yang, Y., Rockwell, D., Cody, K. L.-F., and Pollack, M., 2009, “Generation of Tones Due to Flow Past a Deep Cavity: Effect of Streamwise Length,” J. Fluids Struct., 25, pp. 364–388. [CrossRef]
Oshkai, P., and Yan, T., 2008, “Experimental Investigation of Coaxial Side Branch Resonators,” J. Fluids Struct., 24, pp. 589–603. [CrossRef]
Kook, H., and Mongeau, L., 2002, “Analysis of the Periodic Pressure Fluctuations Induced by Flow Over a Cavity,” J. Sound Vib., 251(5), pp. 823–846. [CrossRef]
Ma, R., Slaboch, P. E., and Morris, S. C., 2009, “Fluid Mechanics of the Flow-Excited Helmholtz Resonator,” J. Fluid Mech., 623, pp. 1–26. [CrossRef]
Hassan, M. E., Labraga, L., and Keirsbulck, L., 2-7 December 2007, “Aero-Acoustic Oscillations Inside Large Deep Cavities,” 16th Australasian Fluid Mechanics Conference, Crown Plaza, Gold Coast, Australia.
Bennett, G. J., O'Reilly, C., Tapken, U., and Fitzpatrick, J., 11-13 May 2009, “Noise Source Location in Turbomachinery Using Coherence Based Modal Decomposition,” 15th AIAA/CEAS Aeroacoustics Conference, Miami, FL.
Bennett, G. J., Verdugo, F. R., and Stephens, D. B., 2010, “Shear Layer Dynamics of a Cylindrical Cavity for Different Acoustic Resonance Modes,” 15th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, July 5–8, Paper No. 1727.
Mendelson, R. S., 2003, “Methods of Measuring Lock-In Strength and Their Application to the Case of Flow Over a Cavity Locking Into a Single Sidebranch,” 9th AIAA/CEAS Aeroacoustics Conference, Hilton Head, South Carolina, May 12–14, AIAA Paper No. 2003-3106.
Ruiz, G., and Rice, H. J., 2002, “An Implementation of a Wave-Based Finite Difference Scheme for a 3-D Acoustic Problem,” J. Sound Vib., 256(2), pp. 373–381. [CrossRef]
Bennett, G. J., O'Reilly, C. J., and Liu, H., 2009, “Modelling Multi-Modal Sound Transmission From Point Soucres in Ducts With Flow Using a Wave-Based Method,” 16th Congress on Sound and Vibration, Kraków, Poland, July 5–9.
Verdugo, F. R., 2012, “Experimental Investigation of Flow Past Open and Partially Covered Cylindrical Cavities,” Ph.D. thesis, Roma Tre, Italy.


Grahic Jump Location
Fig. 1

Schematic of cavity experiment showing the single microphone location. Not to scale.

Grahic Jump Location
Fig. 2

Sketch showing variation in cavity opening location. Not to scale.

Grahic Jump Location
Fig. 3

Sketch showing variation in cavity opening lengths. Not to scale.

Grahic Jump Location
Fig. 4

Photograph of experiment looking through the bottom of the cavity toward the cavity opening to the wind tunnel. The PIV camera is visible above and the cavity is instrumented with two rings of microphones.

Grahic Jump Location
Fig. 5

Cavity acoustic transfer function between the unsteady pressure at the cavity opening and the interior of the cavity. Simulation and experiment shown.

Grahic Jump Location
Fig. 6

Examples of linear fit in the calculation of SoL. Pressure amplitudes at 73 Hz (a) and 376 Hz (b) as a function of the wind tunnel flow speed. L = 45 mm, Δ = 0 mm.

Grahic Jump Location
Fig. 7

Internal cavity pressure predicted by WEM code. This example shows a (1,0,0.5) mode, occuring at He = 2.01. The black square denotes source location. (a) Isometric view, (b) slice along streamwise centerline, and (c) cavity top.

Grahic Jump Location
Fig. 8

Pressure spectral density inside the cavity subjected to grazing flow: L = 40 mm, Δ = 100 mm

Grahic Jump Location
Fig. 9

Pressure spectral density inside the cavity subjected to grazing flow: L = 40 mm and Δ = 40 mm

Grahic Jump Location
Fig. 10

Pressure spectral density inside the cavity subjected to grazing flow: L = 40 mm and Δ = 0 mm

Grahic Jump Location
Fig. 11

Strength of lock-on contours of 10 dB showing effect of cavity opening location: L = 40 mm

Grahic Jump Location
Fig. 12

Strength of lock-on contours of 10 dB showing effect of cavity opening location: Δ = 0

Grahic Jump Location
Fig. 13

Internal cavity pressure with U = 48.5 m/s, L = 45 mm, Δ = 0

Grahic Jump Location
Fig. 14

Internal cavity pressure with U = 49.0 m/s, L = 45 mm and Δ = 0

Grahic Jump Location
Fig. 15

Internal cavity pressure spectrum measured at 26 m/s (averaged over time)

Grahic Jump Location
Fig. 16

Spectrogram of cavity pressure at 26 m/s showing mode switching




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In