An Experimental and Computational Development of a Benchmark Solution for the Validation of Numerical Wave Tanks

Bøckmann, Arne; Pákozdi, Csaba; Kristiansen, Trygve; Jang, Hyunchul; Kim, Jang

doi:10.1115/omae2014-24710

Cited by 13 publications

(5 citation statements)

References 16 publications

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“…The one-way coupling in Star-CCM+ has been made by the Euler-Overlay Method [1,15,16]. Source terms are added to the transport equations of the volume fraction and fluid momentum.…”

Section: Star-ccm+ Figure 2: Euler-overlay Methodsmentioning

confidence: 99%

Development of a Protocol to Couple Wave and Cfd Solvers Towards Reproducible Cfd Modeling Practices for Offshore Applications

Bouscasse¹,

Kim²,

Lim³

et al. 2021

Preprint

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Generating waves inside the CFD domain is a topic of interest in the offshore and naval industry. For practical reasons it is useful to use a potential wave kinematic solver (PWKS) to generate incident waves and use this solution to initialize and propagate incident waves in the CFD solver. Protocols to transfer the wave data from PWKS to CFD solver have been developed to ensure the reproduction of the wave kinematics from a PWKS in CFD solvers. Based on the survey results from a number of PWKS and CFD solvers available, the paper presents the various ways to express the solution and what is needed to reconstruct the fields needed in the CFD.

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“…The one-way coupling in Star-CCM+ has been made by the Euler-Overlay Method [1,15,16]. Source terms are added to the transport equations of the volume fraction and fluid momentum.…”

Section: Star-ccm+ Figure 2: Euler-overlay Methodsmentioning

confidence: 99%

Development of a Protocol to Couple Wave and Cfd Solvers Towards Reproducible Cfd Modeling Practices for Offshore Applications

Bouscasse¹,

Kim²,

Lim³

et al. 2021

Preprint

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“…In this paper, a small time step (1/256 of the encounter period) was used as a base time step. The coarse and fine mesh systems are derived by reducing and increasing cell numbers per wavelength and cell height on free surface , respectively, by using a factor of √2 [27] as well as cell numbers on and around the ship hull, which is affected by the mesh refinement on free surface. The simulation time step is set to be proportional to the grid size [28,29,30].…”

Section: Vertificationmentioning

confidence: 99%

Numerical and Experimental Study on Seakeeping Performance of a High-Speed Trimaran with T-foil in Head Waves

2019

Polish Maritime Research

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The longitudinal motion characteristics of a slender trimaran equipped with and without a T-foil near the bow are investigated by experimental and numerical methods. Computational fluid dynamics ( CFD) method is used in this study. The seakeeping characteristics such as heave, pitch and vertical acceleration in head regular waves are analyzed in various wave conditions. Numerical simulations have been validated by comparisons with experimental tests. The influence of large wave amplitudes and size of T-foil on the longitudinal motion of trimaran are analyzed. The present systematic study demonstrates that the numerical results are in a reasonable agreement with the experimental data. The research implied that the longitudinal motion response values are greatly reduced with the use of T-foil.

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“…Hydrodynamic force on the rods are modeled by Morrison equation where sectional drag and inertial coefficients are obtained from either model test or CFD simulation. The coupling of potential-based numerical wave and CFD solution near the offshore structure has been validated in many recent studies (e.g., Bockmann et al, 2014;Wu et al, 2014). The coupling of mooring/riser model and CFD solution have recently been validated in global performance of Semisubmersibles and TLPs (Wu et al, 2016;Teng et al, 2016).…”

Section: Development Of Energy Saving Device (Esd)mentioning

confidence: 99%

Technical and Economic Readiness Review of CFD-Based Numerical Wave Basin for Offshore Floater Design

im¹,

Jang²,

Baquet³

et al. 2016

Day 1 Mon, May 02, 2016

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As Computational Fluid Dynamics (CFD) and High Performance Computing (HPC) technologies matured in many other industries, the offshore industry has begun to recognize CFD-based Numerical Wave Basin (NWB) as a design tool to evaluate offshore floater design more efficiently and with less uncertainty than the conventional ways relying on empirical methods. The recent NWB technology development has focused on the customization of CFD software for offshore design practices and validation of the developed analysis tools/procedures against physical model tests. Development has now extended to simulation of fully coupled hull-mooring-riser systems.Technology readiness of the NWB for field application is demonstrated for two benchmark problems: 1. Vortex-induced motion of a multi-column floater 2. Global performance of a multi-column floater in extreme wave environment The results indicates that the CFD-based numerical wave basin, although still computationally expensive, is technically ready to be a complementary tool to physical wave basin for offshore platform global performance design.

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An Experimental and Computational Development of a Benchmark Solution for the Validation of Numerical Wave Tanks

Cited by 13 publications

References 16 publications

Development of a Protocol to Couple Wave and Cfd Solvers Towards Reproducible Cfd Modeling Practices for Offshore Applications

Development of a Protocol to Couple Wave and Cfd Solvers Towards Reproducible Cfd Modeling Practices for Offshore Applications

Numerical and Experimental Study on Seakeeping Performance of a High-Speed Trimaran with T-foil in Head Waves

Technical and Economic Readiness Review of CFD-Based Numerical Wave Basin for Offshore Floater Design

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