LIFTING/PROPULSIVE EJECTOR

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$50,000.00
Award Year:
1985
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
2790
Agency Tracking Number:
2790
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
15809 Stagg St, Van Nuys, CA, 91406
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR MORTON ALPERIN
PRINCIPAL INVESTIGATOR
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
AN ANALYSIS OF THE FLOW OF A COMPRESSIBLE FLUID THROUGH A STATIONARY OR TRANSLATING EJECTOR HAS DESCRIBED TWO DISTINCTSOLUTIONS TO THE EQUATIONS GOVERNING THE COMPLETELY MIXED PRIMARY AND SECONDARY FLOWS. BOTH SOLUTIONS PROVIDE THE ESSENTIAL DATA REQUIRED FOR THE DESIGN OF THE EJECTOR GEOMETRY, THE PRIMARY AND SECONDARY MASS FLOWS, THE FLOW PROPERTIES WITHIN THE EJECTOR, AND THE THRUST AUGMENTATION FOR EVERY REASONABLE FLIGHT AND INJECTED GAS CONDITION. HOWEVER, THE SECOND SOLUTION, THAT RESULTS IN A SUPERSONIC MIXED FLOW, PROVIDES A CONSIDERABLY LARGER THRUST AUGMENTATION OVER THE ENTIRE RANGE OF FLIGHT CONDITIONS THANDOES THE FIRST SOLUTION, WHICH RESULTS IN A SUBSONIC MIXED FLOW. THIS STUDY IS INTENDED TO PROVIDE A MEANS FOR SELECTION OF A SUITABLE WIND TUNNEL AND FOR THE DESIGN OF A MODEL AND FORMULATION OF A TEST PLAN TO CORRELATE THE REALISTICALLY ACHIEVABLE PERFORMANCE OF THESE TYPES OF EJECTORS WITH THE THEORY.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government