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Vortex Dynamics of Pitched Orifice S...

Knickerbocker, Matthew.

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Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid./
Author:	Knickerbocker, Matthew.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	44 p.
Notes:	Source: Masters Abstracts International, Volume: 81-12.
Contained By:	Masters Abstracts International81-12.
Subject:	Fluid mechanics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27958255
ISBN:	9798645498894

Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid.
Knickerbocker, Matthew.

Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 44 p.

Source: Masters Abstracts International, Volume: 81-12.

Thesis (M.S.)--University of Colorado at Boulder, 2020.

This item must not be sold to any third party vendors.

An experimental study was performed using planar PIV on synthetic jet actuators with rectangular, pitched orifices of α = 45 degrees and AR = 20 in quiescent conditions. A comparison on the influence of the downstream lip radius was made for dimensionless radii of R* = 0, 4.6, and 7. The synthetic jets were tested at conditions of Re = 750 and 910 with St = 0.118 and 0.097, respectively. The time- and phase-averaged velocity fields were recorded at spanwise positions of z/ho = 0, 2.5, and 5. The vortex formation and flow field were influenced by an increasing lip radius through an increased circulation asymmetry. This increases the momentum near the wall aligned in the downstream direction. Additionally, all geometries exhibited a three-dimensional jet development which is the result of vortex dynamics associated with: 1) axis switching, 2) circulation asymmetry, and 3) interactions with the wall image vortex system.

ISBN: 9798645498894Subjects--Topical Terms:

528155
Fluid mechanics.
Subjects--Index Terms:

Flow control

Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid.
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020 $a 9798645498894
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100 1 $a Knickerbocker, Matthew. $3 3550597
245 1 0 $a Vortex Dynamics of Pitched Orifice Synthetic Jets in Quiescent Fluid.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 44 p.
500 $a Source: Masters Abstracts International, Volume: 81-12.
500 $a Advisor: Farnsworth, John A. N.
502 $a Thesis (M.S.)--University of Colorado at Boulder, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a An experimental study was performed using planar PIV on synthetic jet actuators with rectangular, pitched orifices of α = 45 degrees and AR = 20 in quiescent conditions. A comparison on the influence of the downstream lip radius was made for dimensionless radii of R* = 0, 4.6, and 7. The synthetic jets were tested at conditions of Re = 750 and 910 with St = 0.118 and 0.097, respectively. The time- and phase-averaged velocity fields were recorded at spanwise positions of z/ho = 0, 2.5, and 5. The vortex formation and flow field were influenced by an increasing lip radius through an increased circulation asymmetry. This increases the momentum near the wall aligned in the downstream direction. Additionally, all geometries exhibited a three-dimensional jet development which is the result of vortex dynamics associated with: 1) axis switching, 2) circulation asymmetry, and 3) interactions with the wall image vortex system.
590 $a School code: 0051.
650 4 $a Fluid mechanics. $3 528155
650 4 $a Aerospace engineering. $3 1002622
653 $a Flow control
653 $a Fluid mechanics
653 $a Synthetic jets
653 $a Vortex dynamics
690 $a 0204
690 $a 0538
710 2 $a University of Colorado at Boulder. $b Aerospace Engineering. $3 1030473
773 0 $t Masters Abstracts International $g 81-12.
790 $a 0051
791 $a M.S.
792 $a 2020
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27958255