EFFECTS OF TURBULENCE CHARACTERISTICS ON VORTEX-INDUCED OSCILLATION OF RECTANGULAR CYLINDERS

被引：6

作者：

KOBAYASHI, H ^{[1
]}

KAWATANI, M ^{[1
]}

KIM, H ^{[1
]}

机构：

[1] OSAKA UNIV,DEPT CIVIL ENGN,SUITA,OSAKA 565,JAPAN

来源：

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS | 1992年 / 41卷 / 1-3期

关键词：

D O I：

10.1016/0167-6105(92)90496-W

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper investigates the effects of turbulence properties such as turbulent intensity and scale on the vortex-induced oscillation of two-dimensional rectangular cylinders with aspect ratio of 2 and 5. An active gust generator consisted of two arrays of plates and airfoils is developed to produce the turbulent flows similar to natural wind in a wind tunnel. The power spectra of a generated turbulence successfully agree with the target ones in wide range of frequency, and the turbulence characteristics of generated flows approximately cover those of natural wind. The vortex-induced oscillation of rectangular cylinders are more strongly affected by the turbulence intensity than the turbulence scale. There is a slight tendency that the maximum amplitude of the vortex-induced response of the rectangular cylinder with aspect ratio of 5 reduces as the turbulence scale decreases.

引用

页码：775 / 784

页数：10

共 8 条

[1]

CERMAK JE, 1983, FHWARD82148 FED HIGH

[2]

DAVENPORT AG, 1971, 3RD P INT C WIND EFF, P1207

[3] VORTEX-INDUCED OSCILLATION OF 2-DIMENSIONAL RECTANGULAR CYLINDERS IN LARGE-SCALE TURBULENCE [J].