A three-dimensional numerical approach on water entry of a horizontal circular cylinder using the volume of fluid technique

Iranmanesh, Aghil; Passandideh-Fard, Mohammad

doi:10.1016/j.oceaneng.2016.12.018

Cited by 70 publications

(14 citation statements)

References 38 publications

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“…This leads to that both  and n  are known on the both sides of jet surface, and they can be moved to the right hand side of Eq. (13). In this way, the existence of the jet will not increase any computational effort.…”

Section: Water Jet In Stages 2(b) and 3(b)mentioning

confidence: 96%

“…In addition to the velocity potential theory, there have been also studies using Reynolds averaged Navier-Stokes equations and the volume of fluid method (VOF) for the free surface tracking. The typical work includes those by Do-Quang and Amberg [12] for a falling sphere to investigate the effect of wettability and by Iranmanesh and Passandideh-Fard [13] for a truncated horizontal circular cylinder where the flow along the longitudinal direction was studied.…”

Section: Introductionmentioning

confidence: 99%

“…Continuity conditions of velocity and pressure are imposed on the interface I through applying +-I  and I  mean that the interface is approached from B  and B  respectively, with opposite normal directions, and the subscripts B  and B  imply the values on the original boundaries of these domains. Consequently Eq (13). can be written as[21]…”

mentioning

confidence: 99%

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Free fall motion of a floating body: Bubble formation and its effect

Sun

2019

European Journal of Mechanics - B/Fluids

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The hydrodynamic problem of a floating body moving downwards into water with prescribed velocity or in free fall motion is solved based on the incompressible velocity potential theory through the boundary element method in the time domain. In particular, the focus is on the whole process of flow detachment, the formation of an open cavity, closure of the cavity or formation of entrapped air bubble, collision of the inner jet with the body surface and jet impact with free surface. The whole problem is divided into several stages and methodology is introduced to resolve the numerical challenge at each stage. In particular the dual coordinate system method is adopted to resolve the local sharp spatial and temporal variation in the impact zone, and the domain decomposition method with Riemann second sheet is adopted to resolve domain overlapping. An auxiliary function method is used to decouple the nonlinear mutual dependence of fluid loading, body motion and bubble deformation. Simulations are undertaken for a floating body moving into water at constant velocity or constant acceleration, and in free motion, respectively. Detailed results for pressure, free surface profile, bubble deformation and body motion are provided, and their physical implications are discussed. Keywords:Floating body sinking into water; open cavity and closed bubble; fluid/fluid and fluid/structure impact; domain decomposition method; boundary element method.

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Section: Water Jet In Stages 2(b) and 3(b)mentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Free fall motion of a floating body: Bubble formation and its effect

Sun

2019

European Journal of Mechanics - B/Fluids

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“…Peng and Wei simulated the water entry of a circular cylinder based on a CIP method with the parallel algorithm [13]. Iranmanesh and PassandidehFard numerically investigated water entry of a horizontal circular cylinder for low Froude numbers by the combination of the fast-fictitious-domain method and the volume-offluid (VOF) technique [14]. NAIR and TOMAR employed an incompressible Smoothed Particle Hydrodynamics (ISPH) method to simulate water entry of 2D circular cylinders [15].…”

Section: Modelling and Simulation In Engineeringmentioning

confidence: 99%

Numerical Modeling and Simulation of Wave Impact of a Circular Cylinder during the Submergence Process

Jiang

Cai

2017

Modelling and Simulation in Engineering

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Wave slamming loads on a circular cylinder during water entry and the subsequence submergence process are predicted based on a numerical wave load model. The wave impact problems are analyzed by solving Reynolds-Averaged Navier-Stokes (RANS) equations and VOF equations. A finite volume approach (FV) is employed to implement the discretization of the RANS equations. A two-dimensional numerical wave tank is established to simulate regular ocean waves. The wave slamming problems are investigated by deploying a circular cylinder into waves with a constant vertical velocity. The present numerical method is validated using other numerical or theoretical results in accordance with varying free surface profiles when a circular cylinder sinks in calm water. A numerical example is given to show the submergence process of the circular cylinder in waves, and both free surface profiles and the pressure distributions on the cylinder of different time instants are obtained. Time histories of hydrodynamic load on the cylinder during the submergence process for different wave impact angles, wave heights, and wave periods are obtained, and results are analyzed in detail.

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“…In the recent decade, researchers applied various theoretical or numerical methods for studying water entry of a circular cylinder, such as Sun and Faltinsen [7], Mnasri and Hafsia [8], Ghadimi et al [9], Tassin et al [10] and Iranmanesh and Passandideh-Fard [11]. However, as far as researches of deploying operation are concerned, these researchers were mainly devoted to investigating impact loads on rigid bodies and the deformation of water surface, with little attention paid to dynamic responses of the deployment or lifting system.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Approach to the Dynamic Response of the Deployment System during a Circular Cylinder Crossing through the Wave Zone

Cai

Jiang

2017

Shock and Vibration

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The dynamic response of the deployment system while deploying a circular cylinder crossing wave surface and the following submerging process are investigated numerically. The present numerical approach is based on the combination of solution methods of cable dynamics and computational fluid dynamics (CFD). For the implementation of the numerical approach, a cosimulation platform based on a CFD code and MATLAB is developed to study the fluid-solid interaction problem in the process. To generate regular waves, a numerical wave tank is built based on a piston-type wave generation method and a wave damping method applying porous media. Numerical simulations are performed based on the cosimulation platform. The sensitivities of cable tension, velocity, and acceleration of deployed body to different input parameters are investigated, including phase angles, wave heights, and periods of regular waves and deploying velocities, and the effects of those input parameters on dynamic responses of the deployment system are also discussed.

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A three-dimensional numerical approach on water entry of a horizontal circular cylinder using the volume of fluid technique

Cited by 70 publications

References 38 publications

Free fall motion of a floating body: Bubble formation and its effect

Free fall motion of a floating body: Bubble formation and its effect

Numerical Modeling and Simulation of Wave Impact of a Circular Cylinder during the Submergence Process

A Numerical Approach to the Dynamic Response of the Deployment System during a Circular Cylinder Crossing through the Wave Zone

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