Aeroacoustics of two open cavities in tandem configuration

Chi Kin Randolph Leung, R. M C So, X. M. Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

A study of aeroacoustics of flow past two cavities in tandem configuration using one-step aeroacoustics simulation is reported. The flow is assumed laminar and has a Mach number of 0.6. The length to depth ratio L/H of all cavities is set to 2. Cavities with separation of S/H = 1, 2.5 and 5.5 are considered. The numerical results are compared with single-cavity case to highlight the effects of introducing an additional cavity to the aeroacoustics problem. It is found that the separation between the two cavities is an important parameter of the aeroacoustics problem. Resonant flow oscillations occur when two cavities are very close and the associated acoustic field is very intense. When the cavities are far separated, each cavity undergoes its preferred mode of oscillation, each radiating its own scattered sound field.
Original languageEnglish
Title of host publication12th International Congress on Sound and Vibration 2005, ICSV 2005
Pages2446-2453
Number of pages8
Volume3
Publication statusPublished - 1 Dec 2005
Event12th International Congress on Sound and Vibration 2005, ICSV 2005 - Lisbon, Portugal
Duration: 11 Jul 200514 Jul 2005

Conference

Conference12th International Congress on Sound and Vibration 2005, ICSV 2005
Country/TerritoryPortugal
CityLisbon
Period11/07/0514/07/05

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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