Accession Number : AD0840029

Title :   METEOROLOGICAL DECELERATOR INVESTIGATIONS.

Descriptive Note : Final rept. 1 Aug 66-15 Dec 67,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS DEPT OF AERONAUTICS AND ENGINEERING MECHANICS

Personal Author(s) : Haak, E. L.

Report Date : JUL 1968

Pagination or Media Count : 81

Abstract : Preliminary studies were performed, using both full-scale drop tests and one-third scale atmospheric wind tunnel data, to optimize a passive, high altitude, ram air, density sensor in terms of drag, stability, and fabrication. The drag coefficient of this evolved design was then evaluated by low density wind tunnel tests through the entire range of Mach and Reynolds numbers expected under full-scale operating conditions: (0 < M < or = 0.85, 500<Re < or = 15,000). Limited additional tests were conducted to ascertain aerodynamic stability at these same conditions. An error analysis was performed on the wind tunnel drag data to establish the maximum error range for the experimental results. (Author)

Descriptors :   (*INFLATABLE STRUCTURES, AERODYNAMIC CHARACTERISTICS), (*METEOROLOGICAL INSTRUMENTS, AERODYNAMIC CHARACTERISTICS), METEOROLOGICAL INSTRUMENTS, FALLING BODIES, DETECTORS, AIR MASS ANALYSIS, WIND TUNNEL MODELS, MODEL TESTS, DRAG, STABILITY, REYNOLDS NUMBER, DROP TESTS, HIGH ALTITUDE, OPTIMIZATION.

Subject Categories : Meteorology
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE