Supersonic Drag of Spheres at Low Reynolds Numbers in Free Flight
- 1 August 1957
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 28 (8), 910-912
- https://doi.org/10.1063/1.1722886
Abstract
Values of the drag coefficient have been obtained for spheres in the region 1.5<M<3.0, 350<Re<3000 in the Pressurized Ballistics Range at the Naval Ordnance Laboratory. This region borders, on the low Reynolds number side, one investigated previously. The low Reynolds numbers were obtained by using air pressures of about 7 mm Hg and spheres as small as 132 in. in diameter. A contour map of CD on Mach number and Reynolds number coordinates has been derived from the experimental data.Keywords
This publication has 2 references indexed in Scilit:
- Upper-Air Density and Temperature by the Falling-Sphere MethodJournal of Applied Physics, 1956
- Free-Flight Determinations of the Drag Coefficients of SpheresJournal of the Aeronautical Sciences, 1953