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Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV).

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV)./
Author:	Morjan, Saleh.
Description:	1 online resource (126 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 78-09(E), Section: B.
Contained By:	Dissertation Abstracts International78-09B(E).
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9781369742114

Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV).
Morjan, Saleh.

Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV). - 1 online resource (126 pages)

Source: Dissertation Abstracts International, Volume: 78-09(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

In this experimental work, a flow field test system of wind path system embedded with different vortex generators was installed to investigate the impact of vortex generators on heat transfer of air flow in a horizontal channel, and the flow structure was evaluated using a particle image velocimetry (PIV) system. Three different configurations of vortex generators were fitted vertically on an flat plate, at attack angles 15°, 30°, and 45°, and tested at four different incoming air velocities. An axial fan was used to supply the flow of air through the test section. The effects of Reynolds number, the attack angle, and the shape of vortex generators was examined in this work. The experimental results showed that, the presence of vortex generators had considerable effect on temperature distribution, pressure drop and heat transfer augmentation in the channel flow. Compared with the smooth channel, the heat transfer rate was enhanced by (2.74%--20.2%), (24.64%--41.4%), and (14.7%--36.84%) while the pressure drop increased by (2.1%--26.3%), (7.6%--52.7%), and (14.5%--48.3%) with a small single delta winglet pair, a large single delta winglet pair, and two small VG pairs deployed in a V-formation array, respectively. The PIV experimental results showed that the flow field produced from a winglet pair of vortex generators is a counter-rotating pair of vortices that formed at the location immediately following the trailing edge of VGs, and the vortices pair disperses while moving downstream. These vortices are much larger with a large single winglet pair type compared to the other two VG types.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781369742114Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV).
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099 $a TUL $f hyy $c available through World Wide Web
100 1 $a Morjan, Saleh. $3 1182184
245 1 0 $a Investigation of the Effect of Vortex Generation on Flow Structure and Heat Transfer Enhancement Using Particle Image Velocimetry (PIV).
264 0 $c 2017
300 $a 1 online resource (126 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 78-09(E), Section: B.
500 $a Advisers: Badih Jawad; Liping Liu.
502 $a Thesis (Ph.D.) $c Lawrence Technological University $d 2017.
504 $a Includes bibliographical references
520 $a In this experimental work, a flow field test system of wind path system embedded with different vortex generators was installed to investigate the impact of vortex generators on heat transfer of air flow in a horizontal channel, and the flow structure was evaluated using a particle image velocimetry (PIV) system. Three different configurations of vortex generators were fitted vertically on an flat plate, at attack angles 15°, 30°, and 45°, and tested at four different incoming air velocities. An axial fan was used to supply the flow of air through the test section. The effects of Reynolds number, the attack angle, and the shape of vortex generators was examined in this work. The experimental results showed that, the presence of vortex generators had considerable effect on temperature distribution, pressure drop and heat transfer augmentation in the channel flow. Compared with the smooth channel, the heat transfer rate was enhanced by (2.74%--20.2%), (24.64%--41.4%), and (14.7%--36.84%) while the pressure drop increased by (2.1%--26.3%), (7.6%--52.7%), and (14.5%--48.3%) with a small single delta winglet pair, a large single delta winglet pair, and two small VG pairs deployed in a V-formation array, respectively. The PIV experimental results showed that the flow field produced from a winglet pair of vortex generators is a counter-rotating pair of vortices that formed at the location immediately following the trailing edge of VGs, and the vortices pair disperses while moving downstream. These vortices are much larger with a large single winglet pair type compared to the other two VG types.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
650 4 $a Engineering. $3 561152
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0537
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Lawrence Technological University. $b Mechanical Engineering. $3 1179051
773 0 $t Dissertation Abstracts International $g 78-09B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10270863 $z click for full text (PQDT)