Jet-induced Effects
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2006 |
Genre | : |
ISBN | : 9781600866869 |
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Author | : |
Publisher | : |
Total Pages | : |
Release | : 2006 |
Genre | : |
ISBN | : 9781600866869 |
Author | : |
Publisher | : |
Total Pages | : 34 |
Release | : 1987 |
Genre | : |
ISBN | : |
Author | : Richard J. Margason |
Publisher | : |
Total Pages | : 67 |
Release | : 1970 |
Genre | : |
ISBN | : |
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 26 |
Release | : 2018-07-10 |
Genre | : |
ISBN | : 9781722498184 |
Prediction techniques for jet induced lift effects during hover are available, relatively easy to use, and produce adequate results for preliminary design work. Although deficiencies of the current method were found, it is still currently the best way to estimate jet induced lift effects short of using computational fluid dynamics. Its use is summarized. The new summarized method, represents the first step toward the use of surface pressure data in an empirical method, as opposed to just balance data in the current method, for calculating jet induced effects. Although the new method is currently limited to flat plate configurations having two circular jets of equal thrust, it has the potential of more accurately predicting jet induced effects including a means for estimating the pitching moment in hover. As this method was developed from a very limited amount of data, broader applications of the method require the inclusion of new data on additional configurations. However, within this small data base, the new method does a better job in predicting jet induced effects in hover than the current method. Wardwell, Douglas A. and Kuhn, Richard E. Ames Research Center RTOP 505-68-71...
Author | : Richard John Margason |
Publisher | : |
Total Pages | : 76 |
Release | : 1970 |
Genre | : Aerodynamics |
ISBN | : |
Propulsion device-induced effects on V/STOL aircraft aerodynamics in hover and transition flight.
Author | : Frederick Gwynn Blottner |
Publisher | : |
Total Pages | : 26 |
Release | : 1957 |
Genre | : Jets |
ISBN | : |
The effects of jet density on the induced flow around an axially symmetric jet without pressure gradients are considered. The induced flow velocities decrease as the jet exit density decreases, and a scaling law proposed earlier is approximately correct for the type of jet considered.
Author | : James H. Otis |
Publisher | : |
Total Pages | : 28 |
Release | : 1962 |
Genre | : Jet nozzles |
ISBN | : |
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 229 |
Release | : 2003-02-14 |
Genre | : Nature |
ISBN | : 0309168708 |
This report provides a critical review of toxicologic, epidemiologic, and other relevant data on jet-propulsion fuel 8, a type of fuel in wide use by the U.S. Department of Defense (DOD), and an evaluation of the scientific basis of DOD's interim permissible exposure level of 350 mg/m3
Author | : John M. Kuhlman |
Publisher | : |
Total Pages | : 164 |
Release | : 1978 |
Genre | : Jet stream |
ISBN | : |
Author | : Herbert S. Ribner |
Publisher | : |
Total Pages | : 58 |
Release | : 1946 |
Genre | : Aeronautics |
ISBN | : |
A theoretical investigation was conducted on jet-induced flow deviation. Analysis is given of flow inclination induced outside cold and hot jets and jet deflection caused by angle of attack. Applications to computation of effects of jet on longitudinal stability and trim are explained. Effect of jet temperature on flow inclination was found small when thrust coefficient is used as criterion for similitude. The average jet-induced downwash over tail plane was obtained geometrically.