Water entry and exit of a horizontal circular cylinder

Xinying Zhu, Odd M. Faltinsen, Changhong Hu

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

In this paper we describe the fully nonlinear free-surface deformations of initially calm water caused by the water entry and water exit of a horizontal circular cylinder with both forced and free vertical motions. Two-dimensional flow conditions are assumed in the study. This has relevance for marine operations as well as for the ability to predict large amplitude motions of floating sea structures. A new numerical method called the CIP (Constrained Interpolation Profile) method is used to solve the problem. In this paper the circular cylinder and free surface interaction is treated as a multiphase problem, which has liquid (water), gas (air), and solid (circular cylinder) phases. The flow is represented by one set of governing equations, which are solved numerically on a nonuniform, staggered Cartesian grid by a finite difference method. The free surface as well as the body boundary is immersed in the computational domain. The numerical results of the water entry and exit force, the free surface deformation and the vertical motion of the cylinder are compared with experimental results, and favorable agreement is obtained.

Original languageEnglish
Pages (from-to)253-264
Number of pages12
JournalJournal of Offshore Mechanics and Arctic Engineering
Volume129
Issue number4
DOIs
Publication statusPublished - Nov 1 2007

Fingerprint

Circular cylinders
Water
Finite difference method
Numerical methods
Interpolation
Liquids
Air
Gases

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Mechanical Engineering

Cite this

Water entry and exit of a horizontal circular cylinder. / Zhu, Xinying; Faltinsen, Odd M.; Hu, Changhong.

In: Journal of Offshore Mechanics and Arctic Engineering, Vol. 129, No. 4, 01.11.2007, p. 253-264.

Research output: Contribution to journalArticle

@article{7e04ceb2ce6a408db825e77ce0d5a8b9,
title = "Water entry and exit of a horizontal circular cylinder",
abstract = "In this paper we describe the fully nonlinear free-surface deformations of initially calm water caused by the water entry and water exit of a horizontal circular cylinder with both forced and free vertical motions. Two-dimensional flow conditions are assumed in the study. This has relevance for marine operations as well as for the ability to predict large amplitude motions of floating sea structures. A new numerical method called the CIP (Constrained Interpolation Profile) method is used to solve the problem. In this paper the circular cylinder and free surface interaction is treated as a multiphase problem, which has liquid (water), gas (air), and solid (circular cylinder) phases. The flow is represented by one set of governing equations, which are solved numerically on a nonuniform, staggered Cartesian grid by a finite difference method. The free surface as well as the body boundary is immersed in the computational domain. The numerical results of the water entry and exit force, the free surface deformation and the vertical motion of the cylinder are compared with experimental results, and favorable agreement is obtained.",
author = "Xinying Zhu and Faltinsen, {Odd M.} and Changhong Hu",
year = "2007",
month = "11",
day = "1",
doi = "10.1115/1.2199558",
language = "English",
volume = "129",
pages = "253--264",
journal = "Journal of Offshore Mechanics and Arctic Engineering",
issn = "0892-7219",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "4",

}

TY - JOUR

T1 - Water entry and exit of a horizontal circular cylinder

AU - Zhu, Xinying

AU - Faltinsen, Odd M.

AU - Hu, Changhong

PY - 2007/11/1

Y1 - 2007/11/1

N2 - In this paper we describe the fully nonlinear free-surface deformations of initially calm water caused by the water entry and water exit of a horizontal circular cylinder with both forced and free vertical motions. Two-dimensional flow conditions are assumed in the study. This has relevance for marine operations as well as for the ability to predict large amplitude motions of floating sea structures. A new numerical method called the CIP (Constrained Interpolation Profile) method is used to solve the problem. In this paper the circular cylinder and free surface interaction is treated as a multiphase problem, which has liquid (water), gas (air), and solid (circular cylinder) phases. The flow is represented by one set of governing equations, which are solved numerically on a nonuniform, staggered Cartesian grid by a finite difference method. The free surface as well as the body boundary is immersed in the computational domain. The numerical results of the water entry and exit force, the free surface deformation and the vertical motion of the cylinder are compared with experimental results, and favorable agreement is obtained.

AB - In this paper we describe the fully nonlinear free-surface deformations of initially calm water caused by the water entry and water exit of a horizontal circular cylinder with both forced and free vertical motions. Two-dimensional flow conditions are assumed in the study. This has relevance for marine operations as well as for the ability to predict large amplitude motions of floating sea structures. A new numerical method called the CIP (Constrained Interpolation Profile) method is used to solve the problem. In this paper the circular cylinder and free surface interaction is treated as a multiphase problem, which has liquid (water), gas (air), and solid (circular cylinder) phases. The flow is represented by one set of governing equations, which are solved numerically on a nonuniform, staggered Cartesian grid by a finite difference method. The free surface as well as the body boundary is immersed in the computational domain. The numerical results of the water entry and exit force, the free surface deformation and the vertical motion of the cylinder are compared with experimental results, and favorable agreement is obtained.

UR - http://www.scopus.com/inward/record.url?scp=38149135668&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38149135668&partnerID=8YFLogxK

U2 - 10.1115/1.2199558

DO - 10.1115/1.2199558

M3 - Article

AN - SCOPUS:38149135668

VL - 129

SP - 253

EP - 264

JO - Journal of Offshore Mechanics and Arctic Engineering

JF - Journal of Offshore Mechanics and Arctic Engineering

SN - 0892-7219

IS - 4

ER -