NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Drag reduction in natureRecent studies on the drag-reducing shapes, structures, and behaviors of swimming and flying animals are reviewed, with an emphasis on potential analogs in vehicle design. Consideration is given to form drag reduction (turbulent flow, vortex generation, mass transfer, and adaptations for body-intersection regions), skin-friction drag reduction (polymers, surfactants, and bubbles as surface 'additives'), reduction of the drag due to lift, drag-reduction studies on porpoises, and drag-reducing animal behavior (e.g., leaping out of the water by porpoises). The need for further research is stressed.
Document ID
19910039504
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Bushnell, D. M.
(NASA Langley Research Center Hampton, VA, United States)
Moore, K. J.
(Cortana Corp. Falls Church, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
91A24127
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available