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Titolo:
Enhancement of heat transfer by turbulent decaying swirl flow
Autore:
Yilmaz, M; Comakli, O; Yapici, S;
Indirizzi:
Ataturk Univ, Muhendisl Fak, TR-25240 Erzurum, Turkey Ataturk Univ Erzurum Turkey TR-25240 ndisl Fak, TR-25240 Erzurum, Turkey
Titolo Testata:
ENERGY CONVERSION AND MANAGEMENT
fascicolo: 13, volume: 40, anno: 1999,
pagine: 1365 - 1376
SICI:
0196-8904(199909)40:13<1365:EOHTBT>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
TUBES;
Keywords:
swirl flow; radial swirl generator; heat transfer enhancement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_BC--
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Yilmaz, M AtaturkTurkey Muhendisl Fak, Makina Muhendisligi Bolumu, TR-25240 Erzurum, Ataturk Univ Makina Muhendisligi Bolumu Erzurum Turkey TR-25240
Citazione:
M. Yilmaz et al., "Enhancement of heat transfer by turbulent decaying swirl flow", ENERG CONV, 40(13), 1999, pp. 1365-1376

Abstract

The heat transfer and friction characteristics of a decaying swirl flow were investigated experimentally. The swirling motion of the air was producedby a radial guide vane swirl generator. The vanes of the swirl generator were designed to be adjustable to obtain different swirl intensities. Different guide vane angles (15, 30, 45, 60 and 75 degrees) were used for the swirling flow experiments. The results were correlated in the form of Nusselt number as a function of Reynolds number, Prandtl number and the vane angle as Nu = 0.133Re(0.65)Pr(0.4)(1 + tan 0)(0.406). An augmentation of up to 98% in Nusselt number was obtained in the decaying swirl flow depending upon the Reynolds number and the vane angle. It was found that the performance of swirling flow is higher than corresponding axial flow with high vane angles and relatively low Reynolds numbers. (C) 1999 Elsevier Science Ltd. All rights reserved.

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Documento generato il 13/07/20 alle ore 11:13:04