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NASA-TN-D-8090
A vortex-lattice method for the mean camber shapes of trimmed noncoplanar planforms with minimum vortex drag
Year: 1976
Abstract: A new subsonic method has been developed by which the mean camber surface can be determined for trimmed noncoplanar planforms with minimum vortex drag. This method uses a vortex lattice and overcomes previous difficulties with chord loading specification. A Trefftz plane analysis is utilized to determine the optimum span loading for minimum drag, then solved for the mean camber surface of the wing, which provides the required loading. Sensitivity studies, comparisons with other theories, and applications to configurations which include a tandem wing and a wing winglet combination have been made and are presented.
Subject: AERODYNAMIC
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:23:59Z | |
| date available | 2017-09-04T16:23:59Z | |
| date copyright | 01/01/1976 | |
| date issued | 1976 | |
| identifier other | TTYKAEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/87294 | |
| description abstract | A new subsonic method has been developed by which the mean camber surface can be determined for trimmed noncoplanar planforms with minimum vortex drag. This method uses a vortex lattice and overcomes previous difficulties with chord loading specification. A Trefftz plane analysis is utilized to determine the optimum span loading for minimum drag, then solved for the mean camber surface of the wing, which provides the required loading. Sensitivity studies, comparisons with other theories, and applications to configurations which include a tandem wing and a wing winglet combination have been made and are presented. | |
| language | English | |
| title | NASA-TN-D-8090 | num |
| title | A vortex-lattice method for the mean camber shapes of trimmed noncoplanar planforms with minimum vortex drag | en |
| type | standard | |
| page | 187 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1976 | |
| contenttype | fulltext | |
| subject keywords | AERODYNAMIC | |
| subject keywords | AIRCRAFT | |
| subject keywords | CAMBER | |
| subject keywords | DESIGN | |
| subject keywords | DRAG | |
| subject keywords | LATTICE | |
| subject keywords | LATTICES | |
| subject keywords | MATHEMATICS | |
| subject keywords | METHOD | |
| subject keywords | PLANFORMS | |
| subject keywords | STRUCTURAL | |
| subject keywords | SUBSONIC | |
| subject keywords | VORTEX | |
| subject keywords | VORTICES | |
| subject keywords | WING |