EXPERIMENTAL INVESTIGATION OF JETS IN A CROSS FLOW.
Author : JEAN. ANDREOPOULOS
Publisher :
Page : 72 pages
File Size : 34,42 MB
Release : 1982
Category :
ISBN :
Author : JEAN. ANDREOPOULOS
Publisher :
Page : 72 pages
File Size : 34,42 MB
Release : 1982
Category :
ISBN :
Author :
Publisher :
Page : 340 pages
File Size : 13,70 MB
Release : 1974
Category : Jets
ISBN :
Author : Jannis Andreopoulos
Publisher :
Page : 78 pages
File Size : 45,71 MB
Release : 1982
Category :
ISBN :
Author : David Kenneth Mosher
Publisher :
Page : 340 pages
File Size : 36,64 MB
Release : 1970
Category : Jets
ISBN :
The interference phenomenon occurring when a subsonic turbulent jet exhausts normally from a large flat plate into a low speed crossflow was experimentally investigated in the Georgia Tech nine foot wind tunnel. Static pressures were measured on the surface around the jet. In the region off the surface, including the jet plume, wake and surrounding areas, the average total and static pressures and the average velocity magnitudes and directions were determined. Three jet exit configurations were studied, one circular and two slot-shaped with width to length ratios of 0.3 and 3.4. All have the same exit area. The effective jet to cross-flow velocity ratio was varied, for each of the exit configurations, over the range 4.0 to 12.0. Analysis of the data indicates that the pressure distributions induced on the surface are a combined result of the jet's blocking and entraining effects on the cross flow with entrainment becoming the more dominant of the two as the effective velocity ratio is increased. This relative dominance brings about an attenuation of total interference lift loss (when computed as a fraction of gross thrust) primarily by causing a rise in the low pressures in the wake region as the effective velocity ratio increases. When the effective velocity ratio is held fixed, the total interference lift loss increases with increasing width to length ratio of the jet exit. (Author).
Author : William Theodore Mikolowshy
Publisher :
Page : 454 pages
File Size : 14,23 MB
Release : 1972
Category : Jets
ISBN :
Author : D. S. Liscinsky
Publisher :
Page : 14 pages
File Size : 32,64 MB
Release : 1993
Category : Airplanes
ISBN :
Author : Richard L. Fearn
Publisher :
Page : 156 pages
File Size : 45,61 MB
Release : 1978
Category : Jets
ISBN :
An experimental investigation of a subsonic round jet exhausting perpendicularly from a flat plate into a subsonic crosswind of the same temperature was conducted. Velocity and pressure measurements were made in planes perpendicular to the path of the jet for ratios of jet velocity to crossflow velocity ranging from 3 to 10. The results of these measurements are presented in tabular and graphical forms. A pair of diffuse contrarotating vortices is identified as a significant feature of the flow, and the characteristics of the vortices are discussed.
Author : G.D. Catalano
Publisher :
Page : pages
File Size : 25,47 MB
Release : 1989
Category :
ISBN :
Author : Miroslav Gregorič
Publisher :
Page : 66 pages
File Size : 26,7 MB
Release : 1978
Category : Jets
ISBN :
Author : Thomas Albert Trovillion
Publisher :
Page : 114 pages
File Size : 39,19 MB
Release : 1972
Category : Aerodynamics
ISBN :