PROJECTILE BASE BLEED PREDICTION TECHNIQUE DEVELOPMENT

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 4618
Amount: $499,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Scientific Research Associates
P.o. Box 498, Glastonbury, CT, 06033
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
 HOWARD J GIBELING
Phone: () -
Research Institution
N/A
Abstract
THE PROPOSED EFFORT WOULD DEVELOP A PREDICTIVE TECHNIQUE FORTHE PROJECTILE BASE FLOW REGION INCLUDING THE EFFECTS OF BASE INJECTION AND SPIN. THE TECHNIQUE WOULD BE BASED UPON A SOLUTION OF THE NAVIER-STOKES EQUATIONS WITHOUT THE ASSUMPTION OF AXIAL SYMMETRY, AND WOULD BE APPLICABLE FROM THE LOWSUBSONIC MACH NUMBER RANGE THROUGH THE MID SUPERSONIC RANGE FOR FLOW ABOUT BOTH AXISYMMETRIC AND NON-AXISYMMETRIC BODIESAT PRESENT MOST TECHNIQUES FOR PREDICTING THE PROJECTILE B BLEED FLOW ARE BASE UPON RELATIVELY SIMPLE EMPIRICAL ANAY LSES OR ARE DRESTRICTED TO ASSUMED AXISYMMETRIC FLOW. THE BASED UPON A HIGH RESOLUTION NAVIER-STOKES STUDY AND , THEREFORE, WOULD SIMULATE THE PHYSICS FROM THE GOVERNING EQUATIONS. UNDER THE PHASE I EFFORT, A GENERAL NAVIER-STOKESCODE WOULD BE APPLIED TO THE PROBLEM AND DEMONSTRATION CAL CULATIONS WOULD BE MADE. FUTURE EFFORTS WOULD FOCUS UPON A QUANTITATIVE ASSESSMENT OF THE PROCEDURE OVER A WIDE RANGE OF FLOW CONDITIONS, APPLICATION FOR THREE-DINENSIONAL FLOW I.E., BODY AT ANGLE OF ATTACK, CREATION OF BASE DRAG PER FORMANCE CURVES AND DEVELOPMENT OF A USER FRIENDLY CODE.

* information listed above is at the time of submission.

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