Analysis of the influence of bathymetry on regular representative and realistic irregular waves generated through the WaveMIMO methodology

Authors

DOI:

https://doi.org/10.5902/2179460X87168

Keywords:

WaveMIMO methodology, Sea state, Representative regular waves, Realistic irregular waves, Bathymetry

Abstract

Due to the exponential growth in energy consumption and the possibility of using the energy contained in sea waves, the present study analyzes the influence of wave channel bathymetry on the propagation of representative regular and realistic irregular waves that describe the sea state occurring on the coast of Tramandaí city, state of Rio Grande do Sul, Brazil. The numerical simulations carried out in this study used the Computational Fluid Dynamics software ANSYS Fluent, based on the Finite Volume Method. The treatment of the water-air interface was performed with the Volume of Fluid multiphase model. To generate irregular waves, the WaveMIMO methodology was applied, which enables the numerical simulation of sea states with realistic characteristics. Therefore, in this paper, data from the TOMAWAC spectral model was processed, aiming to obtain orbital velocity profiles of wave propagation and their subsequent imposition as boundary conditions in the wave channel simulated in Fluent. The generation of representative regular waves and realistic irregular waves was analyzed, considering the wave channel with a horizontal bottom and applying bathymetry. Analysis of the results indicates that the use of bathymetry allows a slight improvement in the accuracy of numerical simulations of wave generation.

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Author Biographies

Ana Paula Giussani Mocellin, Universidade Federal do Rio Grande

Master's Degree in Applied Mathematics from the Federal University of Rio Grande do Sul, Brazil (2023). She is currently a PhD student in Computational Modeling at the Federal University of Rio Grande. He has experience in the area of Fluid Dynamics, focused on the energy of ocean waves.

Maycon da Silveira Paiva, Universidade Federal do Rio Grande

Holds a degree in Applied Mathematics from the Federal University of Rio Grande (FURG), and is currently studying for a master's degree at the Graduate Program in Applied Mathematics (PPGMAp) at the Federal University of Rio Grande do Sul (UFRGS).

Augusto Hack da Silva Koch, Universidade Federal do Rio Grande do Sul

Undergraduate student in Energy Management Engineering at UFRGS. He works on topics related to smart microgrids and distributed energy generation.

Phelype Haron Oleinik, Universidade Federal do Rio Grande

Civil engineer graduated in the Coastal and Port Civil Engineering course at the Federal University of Rio Grande - FURG (2017). Master's degree in Ocean Engineering from the Graduate Program in Ocean Engineering (PPGEO) at the Federal University of Rio Grande. He has experience in sea state simulations using spectral wave models, and fluid dynamic simulation of wave energy conversion devices. Also has experience in programming, data processing and analysis. He works on the development of numerical models of wave energy conversion, suspended sediment transport, oil spillage and pollutant dispersion. 

Luiz Alberto Oliveira Rocha, Universidade Federal do Rio Grande

He holds a bachelor's degree in Automotive Mechanical Engineering from the Military Institute of Engineering (1991), a master's degree in Mechanical Engineering from the Pontifical Catholic University of Rio de Janeiro (1995), a PhD in Mechanical Engineering from Duke University (2002) and a postdoctoral degree in the area of Turbulence from the Institute of Hydraulic Research/UFRGS/RS (2006). He has experience in the area of Mechanical Engineering, with emphasis on Thermodynamics, Fluid Mechanics and Heat Transfer, working mainly on the following topics: Geometric Optimization, Energy and Exergy Analysis, Alternative/Renewable Energies, Constructal Theory and Design, Modeling, Simulation and Optimization of Systems. He is currently a visiting professor in the PPGs of Mechanical Engineering at UFRGS, Computational Modeling and Ocean Engineering at FURG, and also works as a collaborating researcher at the Laboratory of Complex Flow Systems at the Institute of Earth Sciences of the University of Évora in Portugal.

Elizaldo Domingues dos Santos, Universidade Federal do Rio Grande

Holds a bachelor's degree in Mechanical Engineering from the Federal University of Rio Grande (2004), a master's degree from the Federal University of Rio Grande do Sul (2007) and a PhD from the Federal University of Rio Grande do Sul (2011). He has experience in the field of mechanical engineering with emphasis on fluid mechanics, heat transfer, thermodynamics, computational fluid dynamics, renewable energy sources and design. He is currently an Associate Professor IV at the Federal University of Rio Grande (FURG) and permanent professor of the Graduate Programs in Computational Modeling (PPGMC) and Ocean Engineering (PPGEO).

Liércio André Isoldi, Universidade Federal do Rio Grande

Holds a Technical Course in Mechanics from the Federal Technical School of Pelotas (1993), a Bachelor's Degree in Mechanical Engineering from the Federal University of Rio Grande (1999), a Bachelor's Degree in Civil Engineering from the Federal University of Rio Grande (1999), a Master's Degree in Ocean Engineering (PPGEO) from the Federal University of Rio Grande (2002), a PhD in Engineering (PROMEC) from the Federal University of Rio Grande do Sul (2008) and a Post-Doctorate linked to the Graduate Program in Computational Modeling (PPGMC) of the Federal University of Rio Grande (2009). He is currently Associate Professor IV (40h - DE) at the School of Engineering (EE) of the Federal University of Rio Grande (FURG), Permanent Professor of the Graduate Program in Computational Modeling (PPGMC-FURG) and the Graduate Program in Ocean Engineering (PPGEO-FURG). 

Juliana Sartori Ziebell, Universidade Federal do Rio Grande do Sul

Holds a bachelor's degree in Mathematics from the Federal University of Rio Grande do Sul (2006), a master's degree in Applied Mathematics from the Federal University of Rio Grande do Sul (2008) and a PhD in Applied Mathematics from the Federal University of Rio Grande do Sul (2013). Currently is an adjunct professor at the Federal University of Rio Grande do Sul. He has experience in the area of Mathematics, with emphasis on Partial Differential Equations, working mainly on the following topics: Nonlinear evolutionary equations, perturbation methods, potential flows, surface waves, and integral equations.

Bianca Neves Machado, Universidade Federal do Rio Grande do Sul

She has a degree in Mathematics from the Federal University of Rio Grande (2009), a Master's degree in Computational Modeling from the Federal University of Rio Grande (2012), and a PhD in Mechanical Engineering from the Federal University of Rio Grande do Sul (2016). He held a Post-Doctorate at the Federal University of Rio Grande, with the Graduate Program in Ocean Engineering (2017). She is currently an adjunct professor, assigned to the Interdisciplinary Department of the Federal University of Rio Grande do Sul, working in the courses of Energy Management Engineering and Interdisciplinary Bachelor in Science and Technology. She works as a Permanent Professor of the Graduate Program in Applied Mathematics (PPGMAp) at UFRGS. He has experience in the area of Applied Mathematics and Mechanical Engineering, working with computational modeling and numerical simulation of devices that convert the energy of sea waves into electrical energy. 

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Published

2024-11-04

How to Cite

Mocellin, A. P. G., Paiva, M. da S., Koch, A. H. da S., Oleinik, P. H., Rocha, L. A. O., Santos, E. D. dos, Isoldi, L. A., Ziebell, J. S., & Machado, B. N. (2024). Analysis of the influence of bathymetry on regular representative and realistic irregular waves generated through the WaveMIMO methodology. Ciência E Natura, 46(esp. 1), e87168. https://doi.org/10.5902/2179460X87168

Issue

Vol. 46 No. esp. 1 (2024): ERMAC e ENMC

Section

Special Edition 1

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