Aeroacoustics of two open cavities in tandem configuration

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

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 proceeding › Conference article published in proceeding or book › Academic research › peer-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 language	English
Title of host publication	12th International Congress on Sound and Vibration 2005, ICSV 2005
Pages	2446-2453
Number of pages	8
Volume	3
Publication status	Published - 1 Dec 2005
Event	12th International Congress on Sound and Vibration 2005, ICSV 2005 - Lisbon, Portugal Duration: 11 Jul 2005 → 14 Jul 2005

Conference

Conference	12th International Congress on Sound and Vibration 2005, ICSV 2005
Country/Territory	Portugal
City	Lisbon
Period	11/07/05 → 14/07/05

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

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title = "Aeroacoustics of two open cavities in tandem configuration",

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.",

author = "Leung, {Chi Kin Randolph} and So, {R. M C} and Li, {X. M.}",

year = "2005",

month = dec,

day = "1",

language = "English",

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volume = "3",

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booktitle = "12th International Congress on Sound and Vibration 2005, ICSV 2005",

note = "12th International Congress on Sound and Vibration 2005, ICSV 2005 ; Conference date: 11-07-2005 Through 14-07-2005",

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TY - GEN

T1 - Aeroacoustics of two open cavities in tandem configuration

AU - Leung, Chi Kin Randolph

AU - So, R. M C

AU - Li, X. M.

PY - 2005/12/1

Y1 - 2005/12/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84881567222&partnerID=8YFLogxK

M3 - Conference article published in proceeding or book

SN - 9781627481496

VL - 3

SP - 2446

EP - 2453

BT - 12th International Congress on Sound and Vibration 2005, ICSV 2005

T2 - 12th International Congress on Sound and Vibration 2005, ICSV 2005

Y2 - 11 July 2005 through 14 July 2005

ER -

Aeroacoustics of two open cavities in tandem configuration

Abstract

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ASJC Scopus subject areas

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