A viscous damping model for piston mode resonance

被引：107

作者：

Tan, L. ^{[1
]}

Lu, L. ^{[1
,2
]}

Tang, G. -Q. ^{[1
,2
]}

Cheng, L. ^{[1
,2
,3
]}

Chen, X. -B. ^{[4
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Int Joint Lab Offshore Oil & Gas Engn, Dalian 116024, Peoples R China

[3] Univ Western Australia, Sch Engn, 35 Stirling Highway, Crawley, WA 6009, Australia

[4] Bur Veritas, Deepwater Technol Res Ctr, Singapore 117674, Singapore

来源：

JOURNAL OF FLUID MECHANICS | 2019年 / 871卷

基金：

澳大利亚研究理事会; 国家重点研发计划;

关键词：

surface gravity waves; NARROW-GAP; WAVE; BEHAVIOR; FORCES; BODIES;

D O I：

10.1017/jfm.2019.302

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A viscous damping model is proposed based on a simplified equation of fluid motion in a moonpool or the narrow gap formed by two fixed boxes. The model takes into account the damping induced by both flow separation and wall friction through two damping coefficients, namely, the local and friction loss coefficients. The local loss coefficient is determined through specifically designed physical model tests in this work, and the friction loss coefficient is estimated through an empirical formula found in the literature. The viscous damping model is implemented in the dynamic free-surface boundary condition in the gap of a modified potential flow model. The modified potential flow model is then applied to simulate the wave-induced fluid responses in a narrow gap formed by two fixed boxes and in a moonpool for which experimental data are available. The modified potential flow model with the proposed viscous damping model works well in capturing both the resonant amplitude and frequency under a wide range of damping conditions.

引用

页码：510 / 533

页数：24

共 31 条

[1]

[Anonymous], 1997, OCEANOGR LIT REV

[2]

CHEN X.-B., 2004, 6 INT C HYDR PERTH T

[3] On damping of two-dimensional piston-mode sloshing in a rectangular moonpool under forced heave motions [J].

Faltinsen, O. M. ;

Timokha, A. N. .

JOURNAL OF FLUID MECHANICS, 2015, 772 :R1

[4] Steady-state liquid sloshing in a rectangular tank with a slat-type screen in the middle: Quasilinear modal analysis and experiments [J].

Faltinsen, O. M. ;

Firoozkoohi, R. ;

Timokha, A. N. .

PHYSICS OF FLUIDS, 2011, 23 (04)

[5] Two-dimensional resonant piston-like sloshing in a moonpool [J].

Faltinsen, Odd M. ;

Rognebakke, Olav F. ;

Timokha, Alexander N. .

JOURNAL OF FLUID MECHANICS, 2007, 575 :359-397

[6] Wave resonances in a narrow gap between two barges using fully nonlinear numerical simulation [J].

Feng, X. ;

Bai, W. .

APPLIED OCEAN RESEARCH, 2015, 50 :119-129

[7] Wave-induced response of a floating two-dimensional body with a moonpool [J].

Fredriksen, Arnt G. ;

Kristiansen, Trygve ;

Faltinsen, Odd M. .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2015, 373 (2033)

[8] Application of a vortex tracking method to the piston-like behaviour in a semi-entrained vertical gap [J].

Kristiansen, T. ;

Faltinsen, O. M. .

APPLIED OCEAN RESEARCH, 2008, 30 (01) :1-16

[9] A two-dimensional numerical and experimental study of resonant coupled ship and piston-mode motion [J].

Kristiansen, T. ;

Faltinsen, O. M. .

APPLIED OCEAN RESEARCH, 2010, 32 (02) :158-176

[10] A new semi-analytical solution for gap resonance between twin rectangular boxes [J].

Liu, Yong ;

Li, Hua-Jun .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART M-JOURNAL OF ENGINEERING FOR THE MARITIME ENVIRONMENT, 2014, 228 (01) :3-16

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