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Novel Methods for Sensor Quieting in Turbulent Flows

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
94831
Program Year/Program:
2010 / STTR
Agency Tracking Number:
09ST2-0024
Solicitation Year:
N/A
Solicitation Topic Code:
DARPA 09T004
Solicitation Number:
N/A
Small Business Information
Progeny Systems Corporation
9500 Innovation Drive Manassas, VA 20110-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2010
Title: Novel Methods for Sensor Quieting in Turbulent Flows
Agency / Branch: DOD / DARPA
Contract: N10PC20089
Award Amount: $98,831.00
 

Abstract:

The Progeny - University of Utah team proposes a new approach for flow noise reduction to improve acoustic sensor performance. Our proposal is to investigate the ability of controlling the turbulent flow by utilizing acceleration which makes the flow locally laminar. Our proposed method of achieving acceleration is to send the flow around a concave surface, by adding a "two-dimensional bump" to an otherwise flat wall. Wall pressure versus distance measurements have shown that the pressure decreases in the first part of the concavity of the bump, and becomes normal again (fully turbulent) downstream. This means that the total amount of flow noise reaching a sensor below the bump will be less than if the sensor were under a flat wall, with turbulence along its entire length.

Principal Investigator:

Jim Powers
Principal Investigator
8013594566
jim.powers@progeny.net

Business Contact:

Christine Sigety
Manager of Business Support
7033686107
csigety@progeny.net
Small Business Information at Submission:

Progeny Systems Corporation
9500 Innovation Drive Manassas, VA 20110

EIN/Tax ID: 541766108
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
University of Utah
Office of Sponsored Projects
1471 Federal Way
Salt Lake City, UT 84102
Contact: Todd Nilsen
Contact Phone: 8015818948