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Practical Assessment of Noise/Performance Trade for High NPR Nozzles

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
82908
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
N073-173-0208
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Aero Systems Engineering, Inc.
358 East Fillmore Avenue St. Paul, MN -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Practical Assessment of Noise/Performance Trade for High NPR Nozzles
Agency / Branch: DOD / NAVY
Contract: N68335-08-C-0086
Award Amount: $78,521.00
 

Abstract:

With improvements in high performance military jet aircraft engines and the increase in complexity of the exhaust systems the noise produced has become problematic. Reducing these noise levels, while maintaining overall system performance, has become the driving issue in new nozzle designs. This proposal will focus on nozzle designs of practical application that can be implemented on current high NPR engine configurations, such as chevrons (or serrations) cut into the trailing edge of the nozzle. In Phase I we will address the practical aspects of making the noise/performance tradeoff for high pressure ratio nozzles. Data will be collected on models in a subscale test facility and evaluated using near field holography and shadowgraph imagery to identify the source characteristics. This will aid development of both CFD and noise prediction algorithms in Phase II.

Principal Investigator:

Dean Long
Technology Manager
6512201290
dlong@aerosysengr.com

Business Contact:

Steve Hedberg
CFO
6512201222
shedberg@aerosysengr.com
Small Business Information at Submission:

AERO SYSTEMS ENGINEERING, INC.
358 East Fillmore Avenue St. Paul, MN 55107

EIN/Tax ID: 410913117
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No