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Titolo:
An investigation of swirling flow in a cylindrical tube
Autore:
Chang, TH; Kim, HY;
Indirizzi:
Kyungnam Univ, Div Mech & Automat Engn, Masan, Kyungnam, South Korea Kyungnam Univ Masan Kyungnam South Korea n, Masan, Kyungnam, South Korea
Titolo Testata:
KSME INTERNATIONAL JOURNAL
fascicolo: 12, volume: 15, anno: 2001,
pagine: 1892 - 1899
SICI:
1226-4865(200112)15:12<1892:AIOSFI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Keywords:
tangential inlet condition; intensity of swirl; 2-cell structure; flow reversal;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Chang, TH Kyungnam Univ, Div Mech & Automat Engn, 449 Wolyoung Dong, Masan, Kyungnam, South Korea Kyungnam Univ 449 Wolyoung Dong Masan Kyungnam South Korea orea
Citazione:
T.H. Chang e H.Y. Kim, "An investigation of swirling flow in a cylindrical tube", KSME INT J, 15(12), 2001, pp. 1892-1899

Abstract

An experimental study was performed for measuring velocity and turbulence intensity in a circular tube for Re=10,000, 15,000 and 20,000, with swirl and without swirling flow. The velocity fields were measured using PIV techniques and swirl motion was produced by a tangential inlet condition. Some preliminary measurements indicated that over the first 4 diameter, two regions of flow reversal were set up ( the so called 2-cell structure). At the highest Reynolds numbers., the maximum values of the measured axial velocitycomponents had moved toward the test tube wall and produce more flow reversal at the conter of the tube. As the Reynolds number increased, the turbulence intensity of swirling flow at the tube inlet also increased.

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Documento generato il 31/03/20 alle ore 19:03:19