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Microbubble Drag Reduction Demonstration

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
53731
Program Year/Program:
2001 / STTR
Agency Tracking Number:
N013-0097
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Cortana Corporation
520 N. Washington Street, #200 Falls Church, VA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2001
Title: Microbubble Drag Reduction Demonstration
Agency / Branch: DOD / NAVY
Contract: N00014-01-M-0236
Award Amount: $70,000.00
 

Abstract:

Cortana Corporation, ARL/PSU, and NAVATEK, propose to address the feasibility of performing a large-scale, seaborne demonstration of microbubble drag reduction (MBDR). A Cortana-led team has successfully demonstrated that a well-designed ejector and acarefully selected ejectant can increase the effectiveness of polymer ejection by a factor of two and reduce historical additive expenditure rates by about two orders of magnitude. We propose to extend this to microbubble drag reduction to determine thescale-up and seawater effects on bubble and ejection parameters, as well as on the efficacy and robustness of the MBDR technique. We will evaluate/select a bubble generator that can provide narrow distributions between 20-400 microns. Using our unique,non-disruptive ejector design, we will investigate effects of bubble size, concentration, and location on drag reduction. The benefits of combining MBDR with polymer drag reduction in terms of systems efficiency and risk mitigation will be examined. Wewill examine the feasibility of quantifying MBDR persistence and effects of full-scale platform operation during the Phase II work by identifying potential test platforms and the instrument package necessary to develop a database of performance. The PhaseI final product will be a detailed design of the at-sea test system.The technology to be demonstrated as a result of the successful completion of the proposed STTR research will be most relevant for new hull forms that have low wave drag. Hence, weenvision the initial market to be the

Principal Investigator:

Carol May
Senior Engineer
7035348000
cmay@cortana.com

Business Contact:

Margie Moore
Dir. of Administration
7035348000
mmoore@cortana.com
Small Business Information at Submission:

CORTANA CORP.
520 N. Washington Street, #200 Falls Church, VA 22046

EIN/Tax ID: 541022146
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
PSU THRU ITS APPLIED RESEARCH LAB
P. O. Box 30
State College, PA 16804
Contact: R. Killoren
Contact Phone: (814) 865-1375
RI Type: Nonprofit college or university