HYDRODYNAMIC FORCES ON NEAR-BED CYLINDERS IN STEADY CURRENTS

被引：0

作者：

Hu, Xiaoyuan ^{[1
]}

Cheng, Liang ^{[1
]}

Tong, Feifei ^{[2
,3
]}

Teng, Yunfei ^{[1
]}

Qu, Yan ^{[1
]}

Jiang, Hongyi ^{[4
,5
]}

机构：

[1] South China Univ Technol, Guangzhou, Peoples R China

[2] Univ Western Australia, Perth, WA, Australia

[3] Southern Cross Univ, Gold Coast Campus, Bilinga, Australia

[4] Zhejiang Univ, Ocean Coll, Zhoushan 316021, Peoples R China

[5] Univ Western Australia, Oceans Grad Sch, 35 Stirling Highway, Perth, WA 6009, Australia

来源：

PROCEEDINGS OF ASME 2023 42ND INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE & ARCTIC ENGINEERING, OMAE2023, VOL 5 | 2023年

关键词：

Hydrodynamic force coefficients; Tandem cylinders; Gap ratio; Vortex shedding; Steady flow; CIRCULAR-CYLINDER; BOUNDARY-LAYER; FLOW;

D O I：

暂无

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Numerical simulations are carried to investigate hydrodynamic forces and flow patterns around cylinder clusters of equally-spaced tandem cylinders closed to a plane wall in steady flow. The Reynolds number covered in the study are Re=10000 and 200000. The number of cylinders in the cluster are 2, 3 and 6 with the spacing between the cylinders being 1, 2 and 4 and the gap to diameter D ratio (e/D) ranging from 0.1 to 1. The numerical results show that the sheltering effect of the leading cylinder in the cluster leads to significant reductions of hydrodynamic forces on the downstream cylinders in the cluster, for the parameter ranges considered in this study. A methodology based on the combination of low fidelity computational fluid dynamic simulations and reliable published force coefficients is proposed for estimating hydrodynamic forces acting on individual cylinders in the cluster.

引用

页数：7

共 14 条

[11] Effect of oscillatory boundary layer on hydrodynamic forces on pipelines [J].

Tang, Guoqiang ;

Cheng, Liang ;

Lu, Lin ;

Teng, Yunfei ;

Zhao, Ming ;

An, Hongwei .

COASTAL ENGINEERING, 2018, 140 :114-123

[12]

Veritas D.N., 2021, DNV-RP-F109, on-bottom stability design of submarine pipelines

[13] Near-wake flow characteristics of a circular cylinder close to a wall [J].

Wang, X. K. ;

Tan, S. K. .

JOURNAL OF FLUIDS AND STRUCTURES, 2008, 24 (05) :605-627

[14] Wake structure characteristics of three tandem circular cylinders at a low Reynolds number of 160 [J].

Zhu, Hongjun ;

Zhong, Jiawen ;

Zhou, Tongming .

PHYSICS OF FLUIDS, 2021, 33 (04)

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