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EXCELLENT OPPORTUNITIES EXIST FOR REDUCING THE DRAG OF AIRCRAFT BY INCREASING…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
1680
Program Year/Program:
1984 / SBIR
Agency Tracking Number:
1680
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
VIGYAN, INC.
30 Research Drive Hampton, VA 23666
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1984
Title: EXCELLENT OPPORTUNITIES EXIST FOR REDUCING THE DRAG OF AIRCRAFT BY INCREASING THE EXTENT OF LAMINAR BOUNDARY-LAYER FLOW OVER THE CONFIGURATION.
Agency: NASA
Contract: N/A
Award Amount: $48,866.00
 

Abstract:

EXCELLENT OPPORTUNITIES EXIST FOR REDUCING THE DRAG OF AIRCRAFT BY INCREASING THE EXTENT OF LAMINAR BOUNDARY-LAYER FLOW OVER THE CONFIGURATION. RECENT TECHNOLOGICAL ADVANCES IN AIRPLANE CONSTRUCTION TECHNIQUES AND MATERIALS EMPLOYING BONDED AND MILLED ALUMINUM SKINS AND COMPOSITE MATERIALS ALLOW FOR THE PRODUCTION OF AERODYNAMIC SURFACES WITHOUT SIGNIFICANT ROUGHNESS AND WAVINESS, PERMITTING LONG RUNS OF NATURAL LAMINAR FLOW (NLF). ALSO, IMPROVED AERODYNAMIC DESIGN AND ANALYSIS METHODS FACILITATE THE SHAPING OF AIRPLANE SURFACES TO OBTAIN FLOW CONDITIONS FAVORABLE TO NLF. A MAJOR PORTION OF THE RESEARCH EFFORT FOR OBTAINING AND MAINTAINING LAMINAR FLOW ON AIRPLANE SURFACES HAS FOCUSED ON THE DELAY OF LAMINAR-TO-TURBULENT BOUNDARY-LAYER TRANSITION ON AIRPLANE LIFTING SURFACES. BODY SHAPING TO INCREASE THE EXTENT OF LAMINAR FLOW ON AIRPLANE FUSELAGES HAS RECEIVED MUCH LESS ATTENTION IN THE LITERATURE. A SIGNIFICANT REDUCTION IN AIRPLANE DRAG CAN BE OBTAINED, HOWEVER, WHEN NLF IS ACHIEVED ON THE FUSELAGE OF AN AIRPLANE. THE PHASE I OBJECTIVES ARE TO EVALUATE THE VARIOUS COMPUTATIONAL DESIGN AND ANALYSIS METHODS WHICH CAN BE APPLIED FOR THE DEVELOPMENT OF LOW-DRAG AERODYNAMIC FUSELAGE SHAPES AND TO ADDRESS THE ANALYTICAL DESIGN OF BODY SHAPES OF SEVERAL FUSELAGES AT FREE-STREAM UNIT REYNOLDS NUMBERS OF 1.5-3.0 MILLION PER FOOT. THE MOST PROMISING CONFIGURATION(S) WILL BE WIND-TUNNEL AND/OR FLIGHT TESTED DURING PHASE II.

Principal Investigator:

Cornelis p. van dam
INVESTIGATOR
0

Business Contact:

Small Business Information at Submission:

Vigyan Research Assoc. Inc.
28 Research Drive Hampton, VA 23666

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No