Exploratory Wind Tunnel Tests Of A Shock Swallowing Air Data Sensor At A Mach Number Of Approximately 183 PDF Download
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Author | : |
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Total Pages | : 46 |
Release | : 1975 |
Genre | : |
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Download Exploratory Wind Tunnel Tests of a Shock-swallowing Air Data Sensor at a Mach Number of Approximately 1.83 Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1008 |
Release | : 1975 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author | : James A. Behal |
Publisher | : |
Total Pages | : 692 |
Release | : 1971 |
Genre | : Buffeting (Aerodynamics) |
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Download Wind Tunnel/flight Data Correlation (u). Book in PDF, ePub and Kindle
A program was conducted to obtain data, both steady state and dynamic, from wind tunnel models and full scale flight tests of the RA-5C aircraft. Data were acquired on 0.228 and 0. 125 scale RA-5C inlet models and on a fully instrumented flight test RA-5C aircraft. Interim data reports presenting the data acquired during each test have been published. These data were utilized in this report to develop scaling techniques for correlating small scale model wind tunnel data with full scale flight data. Data presented include duct steady state operating characteristics and pressure distributions in the inlet and at the engine face. Dynamic data are presented in the form of engine face turbulence contour plots, radial turbulence distributions and selected spectral data functions. Data are presented for variations of angle of attack, angle of yaw, Reynolds number, ramp angle, secondary flow rates and inlet diverter width. Brief descriptions of the model and test methods are also presented.
Author | : E. A. Bonney |
Publisher | : |
Total Pages | : 55 |
Release | : 1953 |
Genre | : |
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Download Wind Tunnel Data Analysis Report on Oal 259, Static Probe Tests Book in PDF, ePub and Kindle
Wind tunnel tests were made using various designs of pressure probes mounted ahead of three different nose designs. These probes included the measurement of static pressure, ram pressure, and angle of attack and yaw in various combinations with each other in an angle of attack range up to 23 degrees. In addition, studies were made of the effect of hole size on the static pressure reading, effect of high angle of attack on these readings, the effect of flow out of the static holes, and the effect of the proximity of a shock wave, and the use of a unique slotted type probe design to minimize variations of static pressure reading with roll angle. It was found that, as the hole sizes were increased from .040 to .125 inches, the static pressure decreased very slightly so as to cause the indicated Mach number (when calculated from measured ram and static pressure) to vary from 1.77 to 1.79 (tunnel M = 1.73) at zero angle of attack. This discrepancy disappears at 6 degrees angle of attack at zero roll angle. A Mach number variation of less than .01 exists up to 5 to 6 degrees angle of attack with the NACA type probe (S). With the hemispherical type probe the indicated Mach number increases with angle of attack at a rate of approximately .01 for every 5 degrees angle of attack up to an angle of 8 degrees, after which it rises slightly more rapidly. (Author).
Author | : David E. Boylan |
Publisher | : |
Total Pages | : 22 |
Release | : 1963 |
Genre | : Boundary layer |
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Download An Analysis of Initial Static Pressure Probe Measurements in a Low-density Hypervelocity Wind Tunnel Book in PDF, ePub and Kindle
An initial experimental program was previously conducted to study the problems in using static pressure probes for flow calibration purposes in low- density, hypervelocity wind tunnels with continuous flow. This data is reviewed in the light of more recent data on thermal transpiration. Results indicate that such probes may be used for what might be termed secondary calibrations, but care is required in interpreting the results. The present experiment yielded data which are compared to static pressures calculated from impact- pressure probe calibrations.
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Total Pages | : |
Release | : 1975 |
Genre | : Government reports announcements & index |
ISBN | : |
Download Government Reports Annual Index Book in PDF, ePub and Kindle
Author | : James A. Behal |
Publisher | : |
Total Pages | : 656 |
Release | : 1971 |
Genre | : Buffeting (Aerodynamics) |
ISBN | : |
Download Wind Tunnel/flight Data Correlation (u). Book in PDF, ePub and Kindle
A program was conducted to obtain data, both steady state and dynamic, from wind tunnel models and full scale flight tests of the RA-5C aircraft. Data were acquired on 0.228 and 0. 125 scale RA-5C inlet models and on a fully instrumented flight test RA-5C aircraft. Interim data reports presenting the data acquired during each test have been published. These data were utilized in this report to develop scaling techniques for correlating small scale model wind tunnel data with full scale flight data. Data presented include duct steady state operating characteristics and pressure distributions in the inlet and at the engine face. Dynamic data are presented in the form of engine face turbulence contour plots, radial turbulence distributions and selected spectral data functions. Data are presented for variations of angle of attack, angle of yaw, Reynolds number, ramp angle, secondary flow rates and inlet diverter width. Brief descriptions of the model and test methods are also presented.
Author | : G. M. Gregorek |
Publisher | : |
Total Pages | : 64 |
Release | : 1966 |
Genre | : Hypersonic wind tunnels |
ISBN | : |
Download A Variable Atmosphere Hypersonic Wind Tunnel for Similitude Studies Book in PDF, ePub and Kindle
Author | : O. B. Tufts |
Publisher | : |
Total Pages | : 246 |
Release | : 1955 |
Genre | : Stability of airplanes, Longitudinal |
ISBN | : |
Download Longitudinal Airplane Dynamics Wind Tunnel Test Equipment Book in PDF, ePub and Kindle
Author | : William B. Boatright |
Publisher | : |
Total Pages | : 44 |
Release | : 1962 |
Genre | : Wind tunnels |
ISBN | : |
Download Description and Preliminary Calibration Tests of a Small Arc-heated Hypersonic Wind Tunnel Book in PDF, ePub and Kindle