Scale effects on tip loaded propeller performance using a RANSE solver

Sánchez-Caja, Antonio; González-Adalid, J.; Pérez-Sobrino, M.; Sipilä, Tuomas

doi:10.1016/j.oceaneng.2014.04.029

Cited by 43 publications

(18 citation statements)

References 3 publications

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“…The propeller performance characteristics can notably vary in non-cavitating conditions at different Reynolds number regimes [1,2]. These aspects have been addressed before [2][3][4][5][6]: for instance, Rijpkema et al [1] rigorously analyzed two different marine propellers using viscous computational fluid dynamics (CFD), which operated at different Reynolds numbers in non-cavitating conditions. Baltazar et al [5,6] examined the γ − Re θ transition model for a wetted propeller performance prediction.…”

Section: Introductionmentioning

confidence: 99%

“…Baltazar et al [5,6] examined the γ − Re θ transition model for a wetted propeller performance prediction. Sánchez-Caja et al [2] investigated the scale effects of a CLT propeller experimentally and numerically. Figure 1 shows an example of paint tests on rough and smooth surfaces representative of full-and model-scale flow regimes.…”

Section: Introductionmentioning

confidence: 99%

“…The location of transition from laminar to turbulent flow, and the extent of the different flow zones, are quite sensitive to the Reynolds number regime in which the propeller operates. An example of paint test results for a CLT propeller [2]. The left frames show rough surfaces and the right frames smooth surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Cavitation on Model- and Full-Scale Marine Propellers: Steady And Transient Viscous Flow Simulations At Different Reynolds Numbers

Viitanen

Siikonen

Sánchez-Caja

2020

JMSE

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In this paper, we conducted numerical simulations to investigate single and two-phase flows around marine propellers in open-water conditions at different Reynolds number regimes. The simulations were carried out using a homogeneous compressible two-phase flow model with RANS and hybrid RANS/LES turbulence modeling approaches. Transition was accounted for in the model-scale simulations by employing an LCTM transition model. In model scale, also an anisotropic RANS model was utilized. We investigated two types of marine propellers: a conventional and a tip-loaded one. We compared the results of the simulations to experimental results in terms of global propeller performance and cavitation observations. The propeller cavitation, near-blade flow phenomena, and propeller wake flow characteristics were investigated in model- and full-scale conditions. A grid and time step sensitivity studies were carried out with respect to the propeller performance and cavitation characteristics. The model-scale propeller performance and the cavitation patterns were captured well with the numerical simulations, with little difference between the utilized turbulence models. The global propeller performance and the cavitation patterns were similar between the model- and full-scale simulations. A tendency of increased cavitation extent was observed as the Reynolds number increases. At the same time, greater dissipation of the cavitating tip vortex was noted in the full-scale conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cavitation on Model- and Full-Scale Marine Propellers: Steady And Transient Viscous Flow Simulations At Different Reynolds Numbers

Viitanen

Siikonen

Sánchez-Caja

2020

JMSE

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“…Propeller design process is also constrained by some hydrodynamics parameters such as Reynolds number, and maximum diameter in the case of weight loading, [4].Since water density is larger than air,therefore the ability to generate the lift force for thrust on the unit of blade area is also limited. Whiletheoretical method offer consistently precision of the design of propeller, however it is quitediffi cult to develop, [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of B-series propeller for traditional purse seine boat in the north coastal region of Central Java Indonesia

Windyandari¹,

Gunawan²,

Suharto³

2018

J Appl Eng Science

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In the North Coastal Region of Central Java, the traditional fi shing boat is a primary object that generates the economics activities of the social community. As an artisanal fi shery, the boats generally adopt the tradition to build technique from their predecessor. Therefore the lack of practice to determine the propeller design which considered the hydrodynamic relation within the boat dimension, hull form geometry and propeller is observed. Presently, there is no a standard propeller design that particularly well designed considering the hull shape geometry for the traditional boat. The aim of the research is to identify the propeller that would be applied to the fi shing boats typically found in the North Coastal Region of Central Java using B-Series marine propeller. Computational Fluid Dynamics (CFD) analysis for assessing the performance ofthrust and torque of the developed propeller was performed.

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“…Although theoretical techniques are more consistent in relation to the precision of the propeller design, they are quite difficult to develop (Takinaci and Atlar 2002;Sánchez-Caja et al 2014). Nevertheless, nowadays marine propellers are routinely designed with 3-dimensional theories based on Vortex Theory (VT) or Boundary Element Methods (BEM).…”

Section: Introductionmentioning

confidence: 99%

Contribution to the marine propeller hydrodynamic design for small boats in the Amazon region

et al. 2016

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In the Amazon, river navigation is very important due to the length of navigable rivers and the lack of alternative road networks. Boats usually operate in unfavorable conditions, since there is no hydrodynamic relation among propellers, geometry, and the dimensions of the boat hull. Currently, there is no methodology for propeller hydrodynamic optimization with low computational cost and easy implementation in the region. The aim of this work was to develop a mathematical approach for marine propeller design applied to boats typically found on Amazon rivers. We developed an optimized formulation for the chord and pitch angle distributions, taking into account the classical model of Glauert. A theoretical analysis for the thrust and torque relationships on an annular control volume was performed. The mathematical model used was based on the Blade Element Momentum Theory (BEMT). We concluded that the new methodology proposed in this work demonstrates a good physical behavior when compared with the theory of Glauert and the experimental data of the Wageningen B3-50 propeller. KEYWORDS: Optimization, BEMT model, theory of Glauert, Wageningen B3-50. Contribuição ao projeto hidrodinâmico de propulsores marítimos voltados as pequenas embarcações da região Amazônica RESUMONa Amazônia, a navegação é muito importante devido a extensão de rios navegáveis e a falta de redes rodoviárias alternativas. As embarcações geralmente trabalham em condições desfavoráveis, uma vez que não há relação entre a hidrodinâmica dos hélices, geometria e as dimensões do casco da embarcação. Atualmente, não há metodologia para otimização hidrodinâmica com baixo custo computacional e fácil implementação na região. O objetivo deste trabalho foi o desenvolvimento de uma abordagem matemática voltada para o projeto de propulsores marítimos aplicados as embarcações tipicamente encontradas nos rios da Amazônia. Nós desenvolvemos uma formulação otimizada para o cálculo das distribuições de corda e ângulo de torção, considerando o modelo clássico de Glauert. Uma análise teórica para as relações de empuxo e torque em um volume de controle anular foi realizado. O modelo matemático utilizado foi baseado na teoria do momento do elemento de pá (BEMT). Concluímos que a nova metodologia, proposta neste trabalho, demonstra bom comportamento físico quando comparado com a teoria de Glauert e os dados experimentais do propulsor Wageningen B3-50. PALAVRAS-CHAVE: Otimização, modelo BEMT, Teoria de Glauert, Wageningen B3-50. Contribution to the marine propeller hydrodynamic design for small boats in the Amazon region ACTA AMAZONICA small dimensions requiring small propellers. Eighty interviews in total were performed, including fifty-four with users and twenty-six with producers. Most of the foundry workshops in the towns were visited. The document contemplated information on the boats' specifications (average speed, length of the waterline, number of passengers and crew members, quantity of cargo), the marine motor (brand, model, nominal power, rpm), and th...

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Scale effects on tip loaded propeller performance using a RANSE solver

Cited by 43 publications

References 3 publications

Cavitation on Model- and Full-Scale Marine Propellers: Steady And Transient Viscous Flow Simulations At Different Reynolds Numbers

Cavitation on Model- and Full-Scale Marine Propellers: Steady And Transient Viscous Flow Simulations At Different Reynolds Numbers

Design and performance analysis of B-series propeller for traditional purse seine boat in the north coastal region of Central Java Indonesia

Contribution to the marine propeller hydrodynamic design for small boats in the Amazon region

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