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Three-dimensional separation and reattachment
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Tobak, M. Peake, D. J. |
| Copyright Year | 1982 |
| Description | The separation of three dimensional turbulent boundary layers from the lee of flight vehicles at high angles of attack is investigated. The separation results in dominant, large scale, coiled vortex motions that pass along the body in the general direction of the free stream. In all cases of three dimensional flow separation and reattachment, the assumption of continuous vector fields of skin friction lines and external flow streamlines, coupled with simple laws of topology, provides a flow grammar whose elemental constituents are the singular points: the nodes, spiral nodes (foci), and saddles. The phenomenon of three dimensional separation may be construed as either a local or a global event, depending on whether the skin friction line that becomes a line of separation originates at a node or a saddle point. |
| File Size | 2252054 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820016291 |
| Archival Resource Key | ark:/13960/t26b1zp6g |
| Language | English |
| Publisher Date | 1982-03-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Computational Fluid Dynamics Skin Friction Saddle Points Turbulent Boundary Layer Topology Three Dimensional Boundary Layer Boundary Layer Separation Three Dimensional Flow Vortices Flow Distribution Wind Tunnel Models Angle of Attack Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
