Download Free Aerodynamic Characteristics Of A 10 Deg Sharp Cone At Hypersonic Speeds And High Angles Of Attack Book in PDF and EPUB Free Download. You can read online Aerodynamic Characteristics Of A 10 Deg Sharp Cone At Hypersonic Speeds And High Angles Of Attack and write the review.

A free-flying instrumented model was tested in a hypersonic facility at M = 5.30, 6.34 and 9.94 and Re = 300,000 to 1,200,000 ft. Aerodynamic lift, total drag and base drag coefficients were obtained together with detailed base pressure distribution measurements at angles of attack from 0 to 60 deg. The measured lift and drag coefficients showed good agreement with the modified Newtonian theory. The centerline base pressure/free-stream static pressure, psia distribution was nearly independent of the angle of attack from -10 to -30 deg but increased rapidly for all test conditions beyond alpha = -30 deg. For similar conditions at angle of attack and Reynolds number, an increase in Mach number resulted in an increase of the base pressure ratio. The measurements indicated a highly complex base flow region, and tentative explanation of the observed results was offered.
Pressure, heat transfer, force, flow field surveys and flow visualization measurements on an inclined cone were obtained in a wind tunnel at a nominal Mach number of 6. Force measurements were also obtained for a 2/3 power law body and two ducted-cone configurations.
The basic objective of the current work was to obtain reliable, interference-free base pressure distribution data on a 10 deg half angle sharp cone at high angles of attack and at hypersonic speeds with varying Reynolds numbers. To this end, a free-flying instrumented model was developed and tested in a free jet hypersonic facility. It was designed to be injected into the flow field at predetermined angles of attack and roll and to be released with adequate vertical velocity to fly through the test section.