Hubrid Hull Forms and Drag Reduction for Conceptual High Speed Submersibles

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$375,000.00
Award Year:
2003
Program:
SBIR
Phase:
Phase II
Contract:
W31P4Q04CR012
Award Id:
58408
Agency Tracking Number:
02SB2-0045
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1313 Newbury Drive, Norman, OK, 73071
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
012796715
Principal Investigator:
EduardAmromin
Director
(952) 402-9642
amromin@aol.com
Business Contact:
SvetlanaKovinskaya
President
(405) 229-8299
amromin@aol.com
Research Institute:
n/a
Abstract
Department of Defense is interested in development of small fighter-like vehicle for combined underwater and surface motions at high speeds. The vehicle requires carry weapons under water. The weapons may generate high additional drag, and drag reductionis the key aspect in design of its hybrid hull. Hydrofoil removes missiles from water at highest speeds, but the problem is to reduce the drag before take off.Our firm proposed to hold weapons within specially generated partial low-drag cavities under the top hydrofoil of a frame-biplane located between the center hull and the struts jointed to side hulls. Phase I has proven possibility hydrofoil drag reductionby partial cavitation with employment of suggested CFD tools for hydrofoil design.Phase II is assigned to find by employment of such CFD tools and experimentally validate: (1) Maximum of possible drag reduction for hydrofoil (with possible increasing of cavity length); (2) Effects of cross-flow on performances of designed low-dragpartially cavitating hydrofoils; (3) Possibility to stabilize low drag of these hydrofoils under sea-induced unsteady perturbations of by developed active flow control systems. A vehicle model towing tank test will be performed to verify model dragreduction by partial cavitation.

* information listed above is at the time of submission.

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