Identification of Turbomachinery Noise Sources Using Acoustical Holography

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,752.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
NNC04CA38C
Award Id:
67284
Agency Tracking Number:
035242
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1796 Stonebridge Drive North, Ann Arbor, MI, 48108
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
136770703
Principal Investigator:
Satha Raveendra
Principal Investigator
(734) 998-0126
t.raveendra@netzero.net
Business Contact:
Satha Raveendra
Business Official
(734) 998-0126
t.raveendra@netzero.net
Research Institute:
n/a
Abstract
Evaluation and enhancement of the acoustical performance of turbomachinery requires knowledge of the acoustic sources. However, the noise generation mechanisms associated with turbomachinery are complex and as result it is not easy to identify these noise sources. The development of an integrated experimental/numerical technique that is based on holography and is applicable for the identification and ranking of complex noise sources is proposed. A new technique based on potential integral equations will be developed to rapidly evaluate the noise sources of complex structures. Generalized acoustical holography that is applicable for arbitrary geometry is extended by incorporating aeroacoustic noise sources in the presence of mean flow.

* information listed above is at the time of submission.

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