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Experimental study of the wake-modes...

Buzard, Alan Joe.

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Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils./
Author:	Buzard, Alan Joe.
Description:	49 p.
Notes:	Source: Masters Abstracts International, Volume: 43-05, page: 1791.
Contained By:	Masters Abstracts International43-05.
Subject:	Engineering, Marine and Ocean. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1425444
ISBN:	049697159X

Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils.
Buzard, Alan Joe.

Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils. - 49 p.

Source: Masters Abstracts International, Volume: 43-05, page: 1791.

Thesis (M.S.)--Florida Atlantic University, 2005.

Particle image velocimetry and flow visualization are used to characterize the wake of a heaving airfoil in a set of two experiments. In the first experiment a tandem airfoil configuration is used, with a stationary airfoil downstream of a heaving airfoil (modified Schmidt wave-propeller). Several vortex structures are identified for a forced Strouhal number (St)---based on airfoil chord-length, forcing frequency, and free-steam velocity---for 0.1 < St < 0.7. An asymmetric average velocity profile is measured in the upper St range. In the second experiment, the wake behind a single heaving airfoil is further inspected, with the purpose of highlighting the asymmetric wake, for 0.1 < St < 1.0. A maximum wake excursion of 18 degrees is measured at St = 0.6, and a minimum excursion of 5.7 degrees occurs at St = 0.9. Using averaged velocity profiles, a virtual origin of the wake excursion is also calculated.

ISBN: 049697159XSubjects--Topical Terms:

1019064
Engineering, Marine and Ocean.

Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils.
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008 130610s2005 eng d
020 $a 049697159X
035 $a (UnM)AAI1425444
035 $a AAI1425444
040 $a UnM $c UnM
100 1 $a Buzard, Alan Joe. $3 1905197
245 1 0 $a Experimental study of the wake-modes for propulsion of two-dimensional heaving airfoils.
300 $a 49 p.
500 $a Source: Masters Abstracts International, Volume: 43-05, page: 1791.
500 $a Adviser: Karl von Ellenrieder.
502 $a Thesis (M.S.)--Florida Atlantic University, 2005.
520 $a Particle image velocimetry and flow visualization are used to characterize the wake of a heaving airfoil in a set of two experiments. In the first experiment a tandem airfoil configuration is used, with a stationary airfoil downstream of a heaving airfoil (modified Schmidt wave-propeller). Several vortex structures are identified for a forced Strouhal number (St)---based on airfoil chord-length, forcing frequency, and free-steam velocity---for 0.1 < St < 0.7. An asymmetric average velocity profile is measured in the upper St range. In the second experiment, the wake behind a single heaving airfoil is further inspected, with the purpose of highlighting the asymmetric wake, for 0.1 < St < 1.0. A maximum wake excursion of 18 degrees is measured at St = 0.6, and a minimum excursion of 5.7 degrees occurs at St = 0.9. Using averaged velocity profiles, a virtual origin of the wake excursion is also calculated.
590 $a School code: 0119.
650 4 $a Engineering, Marine and Ocean. $3 1019064
690 $a 0547
710 2 0 $a Florida Atlantic University. $3 1017837
773 0 $t Masters Abstracts International $g 43-05.
790 1 0 $a von Ellenrieder, Karl, $e advisor
790 $a 0119
791 $a M.S.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1425444