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Propulsion Characteristics of a Non-Sinusoidally Heaving Airfoil
, Venkatraman Kartik
Published in American Institute of Aeronautics and Astronautics
2005
Abstract

The present study is an analysis of the propulsive performance of a non-sinusoidally heaving airfoil. These are compared with equivalent sinusoidal motions. The propulsive characteristics are observed in terms of qualitative study of the wake pattern, calculation of the thrust force and propulsive efficiency as well as the lift force. Three such motions are considered. One is the asymmetric sinusoid which is a sinusoid excepting that the downstroke is faster/slower than the upstroke. The second type of motion considered is the constant heave rate in the upstroke and downstroke resulting in a triangular waveform. The third and final type of motion studied is the sinusoidal pulse train. Of these three, the asymmetric sinusoidal motion gives the most thrust and propulsive efficiency. © 2005 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

About the journal
JournalData powered by Typeset35th AIAA Fluid Dynamics Conference and Exhibit
PublisherData powered by TypesetAmerican Institute of Aeronautics and Astronautics
ISSN0001-1452
Impact Factor1.868
Open AccessNo
Citation Styleunsrt
Sherpa RoMEO Archiving PolicyGreen