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Rolling moments in a trailing vortex flow field
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schwind, R. G. Nielsen, J. N. Dillenius, M. F. E. McMillan, O. J. |
| Copyright Year | 1977 |
| Description | Pressure distributions are presented which were measured on a wing in close proximity to a tip vortex of known structure generated by a larger, upstream semispan wing. Overall loads calculated by integration of these pressures are checked by independent measurements made with an identical model mounted on a force balance. Several conventional methods of wing analysis are used to predict the loads on the following wing. Strip theory is shown to give uniformly poor results for loading distribution, although predictions of overall lift and rolling moment are sometimes acceptable. Good results are obtained for overall coefficients and loading distribution by using linearized pressures in vortex-lattice theory in conjunction with a rectilinear vortex. The equivalent relation from reverse-flow theory that can be used to give economic predictions for overall loads is presented. |
| File Size | 10292526 |
| Page Count | 148 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770010062 |
| Archival Resource Key | ark:/13960/t5n921v9w |
| Language | English |
| Publisher Date | 1977-02-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Vortices Flow Distribution Trailing Edges Pressure Distribution Wing Span Rolling Moments Aerodynamic Loads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
