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Vortex systems on slender rotating bodies and their effect on the aerodynamic coefficients
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fiechter, M. |
| Copyright Year | 1986 |
| Description | The turbulent flow of rotational bodies up to a length of 20 diameters with various head shapes and cylindrical tails was examined in the subsonic wind tunnel with the Mach number of M = 0.1. At angles of incidence lower than 30 degrees, a pair of symmetrical eddies rests stationary from head to tail on the trailing side, very close to the body. At angles between 30 and 60 degrees, the stationary eddies are asymmetrically pushed off. Between 60 and 90 degrees, the eddies detach themselves in an instationary manner. This includes, for example, the turbulent flow at the start-up of flying bodies in the presence of lateral winds. The results of measurments obtained by Mello at M = 2, an impulse method, and the cross flow theory according to Allen are used for comparison. |
| File Size | 1695846 |
| Page Count | 51 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870004848 |
| Archival Resource Key | ark:/13960/t7bs3p747 |
| Language | English |
| Publisher Date | 1986-12-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Photography Turbulent Flow Vortices Reynolds Number Rotating Bodies Flow Distribution Wind Tunnel Tests Angular Velocity Slender Bodies Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
