Three-dimensional cfd analysis to study the thrust and efficiency of a biologically-inspired marine propulsor

Galdo, María Isabel Lamas; Rodríguez, J. D.; Rodríguez, Cristian; Gonzalez, Palma

doi:10.2478/v10012-011-0002-2

Cited by 15 publications

(15 citation statements)

References 9 publications

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“…Esta técnica é capaz de observar e entender os movimentos da água ao redor do corpo humano e sua aplicação para melhorar o desempenho na natação. O CFD é aplicado em muitas pesquisas (BANKS et al, 2014;RIEWALD, 2002;LAMAS et al, 2011;MANTHA et al, 2014;POPA et al, 2014) na tentativa de entender profundamente as bases biomecânicas da natação. Assim, esta técnica pode ser considerada uma nova abordagem relevante para avaliação das forças hidrodinâmicas na natação (GUIGNARD et al, 2017).…”

Section: Discussionunclassified

Forças internas que afetam o nadador: Uma revisão sistemática

Pinto¹,

Chirolli²,

Soares³

et al. 2019

Revista Científica Multidisciplinar Núcleo do Conhecimento

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A velocidade na natação é determinada por fatores biomecânicos e bioenergéticos, sendo necessária a modulação da quantidade de força produzida pelo nadador. O entendimento dos custos mecânicos e da geração de energia nos movimentos 1 Doutorado em andamento em Ciências do Movimento Humano. Mestrado em Ciências do Movimento Humano. Mestrado em Biologia de Fungos, Algas e Plantas. Graduação em Educação Física. Graduação em Engenharia de Aquicultura. 2 Graduação em andamento em Fisioterapia. 3 Mestrado em andamento em Ciências do Movimento Humano. Graduação em Educação Física. 4 Doutorado em Ciências do Desporto. Mestrado em Ciências do Movimento Humano.

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Section: Discussionunclassified

Forças internas que afetam o nadador: Uma revisão sistemática

Pinto¹,

Chirolli²,

Soares³

et al. 2019

Revista Científica Multidisciplinar Núcleo do Conhecimento

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“…Since the Fibonacci spiral is highly presented in nature, and thus is consequence of millions of years of evolution, it is appropriate to propose this geometry for VAWT wind turbines, obtaining a bio-inspired blade profile. In relation to this, some authors of the present work have proposed a bio-inspired shape for a marine propulsor elsewhere [32][33][34][35], improving the performance of the traditional propellers for certain applications. These works demonstrate that sometimes nature can appropriately inspire mechanical devices with surprising results.…”

Section: Blade Profilementioning

confidence: 99%

Analysis of a Nature-Inspired Shape for a Vertical Axis Wind Turbine

et al. 2022

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Wind energy is gaining special interest worldwide due to the necessity of reducing pollutant emissions and employ renewable resources. Traditionally, horizontal axis wind turbines have been employed but certain situations require vertical axis wind turbines. With a view to improve the efficiency of a vertical axis wind turbine Savonius type, the present work proposes a bioinspired design blade profile relying on the Fibonacci spiral. This shape is repeatedly presented in nature and thus it leads to a bio-inspired blade profile. A numerical model was carried out and it was found that the Fibonacci shape improves the performance of the original Savonius shape, based on semicircular blade profiles. Particularly, the Fibonacci blade profile increases around 14% the power in comparison with the Savonius blade profile. Besides this comparison between Savonius and Fibonacci, a research study was carried out to improve the efficiency of the Fibonacci turbine. To this end, the effect of several parameters was analyzed: number of blades, aspect ratio, overlap, separation gap, and twist angle. Improvements on the average power greater than 30% were obtained.

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“…Another advantage is the possibility to swim backward, simply passing the undulation from tail to head. Due to its lower efficiency compared with other BCF modes, anguilliform swimming movement has only inspired a few robots that require high maneuverability, mimicking lampreys [32][33][34][35][36][37][38][39][40][41], snakes [42], salamanders [43][44][45], eels [46][47][48][49][50][51], etc.…”

Section: Bcf Swimming Modesmentioning

confidence: 99%

“…Lamas et al [49] developed an undulating propulsor actuated by several ribs. After that, Lamas et al [50,51] employed CFD (Computational Fluid Dynamics) to study several amplitudes, wavelengths, and oscillation frequencies in anguilliform, carangiform, thunniform, ostraciiform, and gymnotiform movements. They concluded that thunniform is the most efficient swimming mode in terms of the Froude efficiency, followed by caranguiform, ostraciiform, anguilliform, and finally, gymnotiform.…”

Section: Mpf Swimming Modesmentioning

confidence: 99%

Hydrodynamics of Biomimetic Marine Propulsion and Trends in Computational Simulations

Galdo

Rodríguez²

2020

JMSE

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The aim of the present paper is to provide the state of the works in the field of hydrodynamics and computational simulations to analyze biomimetic marine propulsors. Over the last years, many researchers postulated that some fish movements are more efficient and maneuverable than traditional rotary propellers, and the most relevant marine propulsors which mimic fishes are shown in the present work. Taking into account the complexity and cost of some experimental setups, numerical models offer an efficient, cheap, and fast alternative tool to analyze biomimetic marine propulsors. Besides, numerical models provide information that cannot be obtained using experimental techniques. Since the literature about trends in computational simulations is still scarce, this paper also recalls the hydrodynamics of the swimming modes occurring in fish and summarizes the more relevant lines of investigation of computational models.

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Three-dimensional cfd analysis to study the thrust and efficiency of a biologically-inspired marine propulsor

Abstract: ABSTRACT

Cited by 15 publications

References 9 publications

Forças internas que afetam o nadador: Uma revisão sistemática

Forças internas que afetam o nadador: Uma revisão sistemática

Analysis of a Nature-Inspired Shape for a Vertical Axis Wind Turbine

Hydrodynamics of Biomimetic Marine Propulsion and Trends in Computational Simulations

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