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国际流体力学研究期刊
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN 打印: 2152-5102
ISSN 在线: 2152-5110

国际流体力学研究期刊

DOI: 10.1615/InterJFluidMechRes.v29.i3-4.280
8 pages

Investigation of Strouhal Number of Circular Cylinders in Clusters

J. A. Zuranski
Instytut Techniki Budowlanej - Building Research Institute (ITB) ul. Filtrowa 1, 00-611, Warsaw, Poland
J. Wojciechowski
Instytut Techniki Lotniczej i Mechaniki Stosowanej, Wydzial Mechaniczny Energetyki i Lotnictwa, Politechnika Warszawska, ul. Nowowiejska 24, Warsaw, Poland
R. I. Kinash
Lviv Polytechnic National University, vul. S. Bandery 12, Lviv, Ukraine

ABSTRACT

The paper deals with the method and results of wind tunnel investigations of the Strouhal Number of clusters of circular cylinders. Clusters of two, three and four smooth cylinders of the same diameter were tested in a wind tunnel with the working section 1 ґ 1 m2, within the range of The Reynolds Numbers between 2.8 Ч 104 and 7.4 Ч 104. The distances between axes of cylinders ranged from 1.0D (cylinders in contact, zero gap) to 1.8D. It was assumed that for such distances one vortex street exists behind a cluster. The Strouhal Number was determined using dominating frequency in the flow fluctuation energy spectrum measured behind a cluster.


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