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| Title | A parametric study of the aerodynamic characteristics of nose-cylinder-flare bodies at a Mach number of 6.0 |
| Series | NASA technical note D-2854. |
| Creator | Ashby, George C.
Cary, Aubrey M.
United States. National Aeronautics and Space Administration
|
| Subject | Noses (Space vehicles) -- Testing. Aerodynamics, Hypersonic Space vehicles -- Atmospheric entry
|
| Description | Force tests were conducted at a Mach number of 6.0 on nose-cylinder-flare bodies to determine the effect of nose shape, cylinder length, flare angle, and flare length on the longitudinal aerodynamic characteristics. A particular investigation was conducted to determine the effect of flare angle for constant flare length, surface area, and diameter. Results indicated that at a Reynolds number of approximately 0,92 x 106 (based on body diameter), the boundary-layer separation effects were significant only with respect to the slope of the normal-force and pitching-moment curve at low angles of attack. The variations of the aerodynamic characteristics with the various parameters were, in general, similar to those predicted by Newtonian theory below a flare angle of 300 and a ratio of flare base diameter to cylinder diameter of less than approximately 2.2. The limiting diameter ratio is consistent with the extent of the low-constant dynamic-pressure region near the body caused by the bow-shock influences as predicted by axisymmetric characterisctc theory. |
| Publisher | Washington, D.C. : National Aeronautics and Space Administration Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, 1965. |
| Local Notes | Donated by Sandia National Laboratories, November 2005. |
| Notes | This work is part of the library's ""Parachute History Collection"" donated by Sandia National Laboratories"" through the American Institute of Aeronautics and Astronautics Aerodynamic Deceleration Systems Technical Committee. ""June 1965""--cover. |
| DateOriginal | 1965 |
| Format | Portable Document Format |
| Extent | 78 p. |
| Call Number | TL875 .A83 1965 |
| Original Record Link | http://leonardo.lindahall.org/ipac20/ipac.jsp?profile=lhlopen&full=3100001~!637482~!3 |
| Language | English |
| Relation | A parametric study of the aerodynamic characteristics of nose-cylinder-flare bodies at a Mach number of 6.0 |
| Collection | Parachute History Collection |
| Rights | http://www.lindahall.org/collections/hos_imageuse.shtml |
