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Application of Pinniped Vibrissae to AeropropulsionVibrissae of Phoca Vitulina (Harbor Seal) and Mirounga Angustirostris (Elephant Seal) possessundulations along their length. Harbor Seal Vibrissae were shown to reduce vortex induced vibrations and reduce dragcompared to appropriately scaled cylinders and ellipses. Samples of Harbor Seal vibrissae, Elephant Seal vibrissae andCalifornia Sea Lion vibrissae were collected from the Marine Mammal Center in California. CT scanning, microscopy and3D scanning techniques were utilized to characterize the whiskers. Computational fluid dynamics simulations of thewhiskers were carried out to compare them to an ellipse and a cylinder. Leading edge parameters from the whiskerswere used to create a 3D profile based on a modern power turbine blade. The NASA SW-2 facility was used to performwind tunnel cascade testing on the 'Seal Blades'. Computational Fluid Dynamics simulations were used to studyincidence angles from -37 to +10 degrees on the aerodynamic performance of the Seal Blade. The tests and simulationswere conducted at a Reynolds number of 100,000. The Seal Blades showed consistent performance improvements overthe baseline configuration. It was determined that a fuel burn reduction of approximately 5 could be achieved for a fixedwing aircraft. Noise reduction potential is also explored
Document ID
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Shyam, Vikram
(NASA Glenn Research Center Cleveland, OH United States)
Ameri, Ali
(Ohio State Univ. Columbus, OH, United States)
Poinsatte, Philip
(NASA Glenn Research Center Cleveland, OH United States)
Thurman, Douglas
(Army Research Lab. Cleveland, OH, United States)
Wroblewski, Adam
(NASA Glenn Research Center Cleveland, OH United States)
Snyder, Christopher
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
December 8, 2015
Publication Date
June 15, 2015
Subject Category
Aircraft Propulsion And Power
Fluid Mechanics And Thermodynamics
Report/Patent Number
Meeting Information
Meeting: ASME Turbo Expo 2015
Location: Montreal
Country: Canada
Start Date: June 15, 2015
End Date: June 19, 2015
Sponsors: American Society of Mechanical Engineers
Funding Number(s)
WBS: WBS 694478.
Distribution Limits
Public Use Permitted.
vortex induced vibration
noise reduction
vortex induced vibration
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