Wall proximity effects on flow over cylinders with different cross sections

被引：7

作者：

Bayraktar, Seyfettin ^{[1
]}

Yayla, Sedat ^{[2
]}

Oztekin, Alparslan ^{[3
]}

Ma, Haolin ^{[3
]}

机构：

[1] Yildiz Tekn Univ, Dept Naval Architecture & Marine Engn, TR-34349 Istanbul, Turkey

[2] Yuzuncu Yil Univ, Dept Mech Engn, TR-65080 Van, Turkey

[3] Lehigh Univ, Dept Mech Engn & Mech, Bethlehem, PA 18015 USA

来源：

CANADIAN JOURNAL OF PHYSICS | 2014年 / 92卷 / 10期

关键词：

TANDEM SQUARE CYLINDERS; CIRCULAR-CYLINDER; PLANE WALL; WAKE; TURBULENT; SPHERE; PLATE; RANS;

D O I：

10.1139/cjp-2013-0692

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper presents the results of a numerical study on flow characteristics over circular, square, and diamond cross-sectional cylinders. Investigations are performed in a two-dimensional domain using the finite volume discretization method solver for Reynolds number, Re = 20 000. Unsteady Reynolds averaged Navier-Stokes equations with Spalart-Allmaras turbulence model have been used as a turbulence closure. After the validation of the simulations with the available experimental data from the open literature, global characteristics of the flow field around different shaped cylinders near the wall have been presented. Effects of wall proximity on cylinders are investigated for four different gap width (G) to cylinder width (D) ratios.

引用

页码：1141 / 1148

页数：8

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