| タイトル | Application of Pinniped Vibrissae to Aeropropulsion |
| 本文（外部サイト） | http://hdl.handle.net/2060/20160009221 |
| 著者（英） | Snyder, Chris; Ameri, Ali; Thurman, Doug; Poinsatte, Phil; Shyam, Vikram; Wroblewski, Adam |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2015-06-15 |
| 言語 | eng |
| 内容記述 | Vibrissae of Phoca Vitulina (Harbor Seal) and Mirounga Angustirostris (Elephant Seal) possess undulations along their length. Harbor Seal Vibrissae were shown to reduce vortex induced vibrations and reduce drag compared to appropriately scaled cylinders and ellipses. Samples of Harbor Seal vibrissae, Elephant Seal vibrissae and California Sea Lion vibrissae were collected from the Marine Mammal Center in California. CT scanning, microscopy and 3D scanning techniques were utilized to characterize the whiskers. Computational fluid dynamics simulations of the whiskers were carried out to compare them to an ellipse and a cylinder. Leading edge parameters from the whiskers were used to create a 3D profile based on a modern power turbine blade. The NASA SW-2 facility was used to perform wind tunnel cascade testing on the 'Seal Blades'. Computational Fluid Dynamics simulations were used to study incidence angles from -37 to +10 degrees on the aerodynamic performance of the Seal Blade. The tests and simulations were conducted at a Reynolds number of 100,000. The Seal Blades showed consistent performance improvements over the baseline configuration. It was determined that a fuel burn reduction of approximately 5 could be achieved for a fixed wing aircraft. Noise reduction potential is also explored. |
| NASA分類 | Fluid Mechanics and Thermodynamics; Aircraft Design, Testing and Performance |
| レポートNO | GRC-E-DAA-TN24354 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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