Relevant bibliographies by topics / HOS-NWT

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'HOS-NWT'

Author: Grafiati
Published: 3 November 2023
Last updated: 31 July 2025

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Journal articles on the topic "HOS-NWT"

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Kim, Young Jun, Maxime Canard, Benjamin Bouscasse, Guillaume Ducrozet, David Le Le Touzé, and Young-Myung Choi. "High-Order Spectral Irregular Wave Generation Procedure in Experimental and Computational Fluid Dynamics Numerical Wave Tanks, with Application in a Physical Wave Tank and in Open-Source Field Operation and Manipulation." Journal of Marine Science and Engineering 12, no. 2 (2024): 227. http://dx.doi.org/10.3390/jmse12020227.

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The accurate generation of a target sea state in numerical or experimental wave tanks is a fundamental line of research for the ocean engineering community. It guarantees the quality and relevance of wave–structure interaction tests. This study presents a reproducible irregular wave generation and qualification procedure, accounting for the nonlinear aspects of wave propagation. It can be used for both numerical simulation and experiments. The presented numerical and experimental results are obtained from the OpenFOAM solver and the Ecole Centrale Nantes wave tank facilities, respectively. The
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Aertsens, Tim, Guillaume Ducrozet, Jaak Monbaliu, and Alessandro Toffoli. "PERFORMANCE STUDY OF A LOW-PASS FILTER TO MODEL ENERGY DISSIPATION DUE TO MULTIDIRECTIONAL WAVE BREAKING IN HOS-NWT." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 47. https://doi.org/10.9753/icce.v38.waves.47.

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The open-source available High Order Spectral – Numerical Wave Tank (HOS-NWT) (Ducrozet et al., 2012) is an extensively validated and widely used model to simulate waves in a wave basin. For instance, Vyzikas et al. (2021) proved a very good performance of HOS-NWT for the surface dynamics of steep focused wave groups. However, since the model is a free surface potential flow solver, modelling breaking waves within this framework is far from straightforward. Yet, if one’s interest is in capturing the effect of breaking on the overall wave-field evolution, rather than in deterministically replic
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Kim, Shinwoong, Benjamin Bouscasse, Guillaume Ducrozet, et al. "Numerical and experimental study of a FORM-based design wave applying the HOS-NWT nonlinear wave solver." Ocean Engineering 263 (November 2022): 112287. http://dx.doi.org/10.1016/j.oceaneng.2022.112287.

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Vyzikas, Thomas, Dimitris Stagonas, Christophe Maisondieu, and Deborah Greaves. "Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups." Fluids 6, no. 1 (2020): 9. http://dx.doi.org/10.3390/fluids6010009.

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NewWave-type focused wave groups are commonly used to simulate the design wave for a given sea state. These extreme wave events are challenging to reproduce numerically by the various Numerical Wave Tanks (NWTs), due to the high steepness of the wave group and the occurring wave-wave interactions. For such complex problems, the validation of NWTs against experimental results is vital for confirming the applicability of the models. Intercomparisons among different solvers are also important for selecting the most appropriate model in terms of balancing between accuracy and computational cost. T
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Cong, Longfei, Bin Teng, Wei Bai, and Zaijin You. "A Stabilized High‐Order Spectral Model With Adaptive Residual‐Based Artificial Viscosity for Fully‐Nonlinear Free‐Surface Flow." International Journal for Numerical Methods in Engineering 126, no. 13 (2025). https://doi.org/10.1002/nme.70078.

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ABSTRACTIn the present work, a stabilized High‐Order Spectral (HOS) model with adaptive residual‐based artificial viscosity (RAV) has been developed for performance enhancement in fully‐nonlinear free‐surface flow simulation. To suppress the numerical instability caused by the nonlinear wave‐wave interactions, that is, the nonlinear mode‐coupling between eigen‐modes, with an explicit time‐domain integrator, additional estimations about the numerical residuals of free‐surface elevation and free‐surface potential with their backward histories have been carried out for stability‐indicating and ar
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Dissertations / Theses on the topic "HOS-NWT"

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Kim, Shinwoong. "Experimental study on wave bending moments of a zero-speed rigid containership model in regular, irregular, and equivalent design waves." Electronic Thesis or Diss., Ecole centrale de Nantes, 2023. http://www.theses.fr/2023ECDN0001.

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La thèse vise à étudier les mouvements et les chargements internes d’un modèle de porte-conteneur rigide formé de 9 segments dans des vagues extrêmes. L’étude est principalement expérimentale et est réalisée avec une maquette sans vitesse d’avance dans une houle de face et une houle oblique (-120 degrés). L’étude aboutit à des résultats soulignant l’importance de la prendre en compte les aspects non linéaires des vagues et des réponses structurelles correspondantes.Dans des conditions de mer de face, trois types de vagues sont testés. Des vagues régulières sont utilisées pour s’assurer que le
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Conference papers on the topic "HOS-NWT"

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Seiffert, Betsy R., and Guillaume Ducrozet. "A Comparative Study of Wave Breaking Models in a High-Order Spectral Model." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61664.

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We examine the implementation of two different wave breaking models into the nonlinear potential flow solver HOS-NWT. HOS-NWT is a computationally efficient, open source code that solves for surface elevation in a numerical wave tank using the High-Order Spectral (HOS) method [1]. The first model is a combination of a kinematic wave breaking onset criteria proposed by Barthelemey, et al. [2] and validated by Saket, et al. [3], and an energy dissipation mechanism proposed by Tian, et al. [4, 5]. The wave breaking onset parameter is based on the ratio of local energy flux velocity to the local c
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Choi, Youngmyung, Benjamin Bouscasse, Sopheak Seng, Guillaume Ducrozet, Lionel Gentaz, and Pierre Ferrant. "Generation of Regular and Irregular Waves in Navier-Stokes CFD Solvers by Matching With the Nonlinear Potential Wave Solution at the Boundaries." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78077.

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The capability of wave generation and absorption in a viscous flow solver becomes important for achieving realistic simulations in naval and offshore fields. This study presents an efficient generation of nonlinear wave fields in the viscous flow solver by using a nonlinear potential solver called higher-order spectral method (HOS). The advantages of using a fully nonlinear potential solver for the generation of irregular waves are discussed. In particular, it is shown that the proposed method allows the CFD simulation to start at the time and over the space of interest, retrieved from the pot
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Ducrozet, Guillaume, Benjamin Bouscasse, Félicien Bonnefoy, and Vincent Leroy. "Methodology for the Integration of Experimental and Numerical Fluid Dynamics in the Study of a Floating Body Such As a Wind Turbine Subjected to Environmental Loads." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-104676.

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Abstract The decrease in the computational cost of high-fidelity solvers like Computational Fluid dynamics (CFD) has expanded its use in the design of marine structures. This is true among academics and industrial R&D departments. After a long debate about whether CFD would or not supplant traditional experimental methods, it is widely accepted that the two approaches need to be considered together. The present paper proposes a framework for the integration of both experiments and high-fidelity numerical simulations in the design procedures of offshore wind turbines. It makes use of the no
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Canard, Maxime, Guillaume Ducrozet, and Benjamin Bouscasse. "Generation of 3-hr Long-Crested Waves of Extreme Sea States With HOS-NWT Solver." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18930.

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Abstract The accurate control of wave fields generated in experiments and numerical simulations is of great interest for the ocean engineering community. In the context of wave-structure interactions, the recommended practices of classification societies are indeed based on the definition of a wave spectrum, that needs to be reproduced. The present work intends to address this problem from the numerical point of view, using a Numerical Wave Tank equipped with a wavemaker and an absorbing beach, based on the High-Order Spectral method (HOS-NWT). The challenging case of the generation of 3-hours
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Canard, Maxime, Guillaume Ducrozet, and Benjamin Bouscasse. "Generation of Controlled Irregular Wave Crest Statistics in a Numerical Wavetank Using HOS-NWT Solver." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-79880.

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Abstract In order to assess the reliability of offshore structures facing extreme environmental conditions, sea keeping tests are performed at model scale in experimental or numerical wave tanks. The scope of the present paper is limited to the generation of wave condition for such tests. The vast majority of industrial practices follow a stochastic approach. For each design sea state, several realizations of long irregular wave sequences are generated. The qualification of the waves mainly relies on the analysis of the mean spectrum and the ensemble crest height distribution at the structure
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Ducrozet, Guillaume, Fe´licien Bonnefoy, David Le Touze´, et al. "Experimental and Numerical Comparative Investigation of Pressure Fields Under Steep 2D Waves." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92616.

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In the present work is presented a recently developed fully-nonlinear spectral Numerical Wave Tank (NWT) model, named HOST-wm2, and its capabilities for reproducing highly-nonlinear evolutions in a wavetank are evidenced on experimental comparisons. This fully-spectral model is based on a Higher-Order Spectral (HOS) method, which ensures high levels of accuracy and efficiency, thanks to the fast resolution made by FFTs only. This numerical method is dedicated to model wave basins and a specific care is paid to fit the experimental wavetank characteristics (are included, the physical geometry o
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Aertsens, Tim, Guillaume Ducrozet, Alessandro Toffoli, and Jaak Monbaliu. "Two-Sided Wave Generation in a High-Order Spectral Numerical Wave Tank." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-100850.

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Abstract The Coastal & Ocean Basin (COB) is a brand-new wave-current basin in Ostend (Belgium). The basin is 30m long and 30m wide, and it is equipped with modular wavemakers on two adjacent sides. This allows generation of multi-modal seas (including the so-called crossing-sea states). A system of multiple pumps will also be installed to allow generation of currents propagating at an arbitrary angle relative to the dominant wave field. To optimally utilize this new facility, an efficient numerical equivalent of the COB has been coded based on the High-Order Spectral Method (HOSM). The fir
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Bihs, Hans, Ronja Ehlers та Widar Wang. "A Shock-Absorbing Non-Hydrostatic Navier-Stokes Solver on σ-GRIDS for Wave Modeling Over Irregular Topography". У ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-127429.

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Abstract In recent times, there has been the introduction of various numerical wave tanks (NWT) based on computational fluid dynamics (CFD) that provide detailed information on wave propagation and associated wave hydrodynamics. Faster solutions for nonlinear wave propagation are desirable for a wide range of ocean and coastal engineering scenarios. High-order spectral (HOS) wave models and fully nonlinear potential flow (FNPF) models are potential options for efficient wave propagation simulations in deep water. In the design of offshore wind substructures, it is often necessary to identify s
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Bouscasse, Benjamin, Andrea Califano, Young Myung Choi, et al. "Qualification Criteria and the Verification of Numerical Waves: Part 2: CFD-Based Numerical Wave Tank." In ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/omae2021-63710.

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Abstract There is increasing interest in numerical wave simulations as a tool to design offshore structures, especially for the prediction of stochastic nonlinear wave loads like those related to air-gap and wave impact. Though the simulations cannot replace all experiments, they are now competitive on some topics such as the computations of wind and current coefficients. To proceed further it is necessary to improve the procedure to account for another complex environmental factor, wave motion. This paper addresses an industrial collaboration to develop modeling practices and qualification cr
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