A BEM-Based Model of a Horizontal Axis Tidal Turbine in the 3D Shallow Water Code SHYFEM

Pucci, Micol; Garbo, Chiara Di; Bellafiore, Debora; Zanforlin, Stefania; Umgiesser, Georg

doi:10.3390/jmse10121864

Cited by 5 publications

(6 citation statements)

References 25 publications

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“…Another example was shown in [31], in which BEM theory was used to mode tidal turbines that constituted a farm, specifically to a small cluster of ten turbine simplifications were applied in this work such as considering each turbine as a which a uniform fluid velocity was applied throughout the area swept by the t The modeling of the fluid that interacted with each of the tidal turbines was car using SHYFEM (System of HydrodYnamic Finite Element Modules) [32], valida model from the experimental data.…”

Section: Introductionmentioning

confidence: 93%

“…This singularity is avoided by forcing the value of ani f (t) not to take values less than −1. This is expressed mathematically in Equation (31).…”

Section: •Aximentioning

confidence: 99%

“…Another example was shown in [31], in which BEM theory was used to model several tidal turbines that constituted a farm, specifically to a small cluster of ten turbines. Some simplifications were applied in this work such as considering each turbine as a disk to which a uniform fluid velocity was applied throughout the area swept by the turbines.…”

Section: Introductionmentioning

confidence: 99%

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BEM Turbine Model and PID Control System of a Floating Hybrid Wind and Current Turbines Integrated Generator System

Tamarit,

García,

Quiles

et al. 2023

JMSE

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This is a new installment in the series of publications that describe the mathematical modeling of the Floating Hybrid Generator Systems Simulator (FHYGSYS) tool. This work presents an improved mathematical model of the turbines of the floating hybrid system—consisting of an “OC3-Hywind” wind turbine and two marine current turbines—presented by the authors in previous publications. In this third installment, the modeling of the three turbines of the floating hybrid system is described using the Blade Element Momentum (BEM) theory. This modeling allows one to replace the one based on the One-Dimensional theory used in previous installments. For the operation of modeling with BEM, it has been considered necessary to implement a continuous feedback control system. In this case, two PID (proportional–integral–derivative) controllers have been implemented in each of the turbines. The first controls the torque on the turbine generator and the second controls the collective pitch angle of the blades. The results obtained are presented and validated through a code-to-code comparison with simulations carried out with FASTv8 under the same conditions and with the operating results of marine current turbines that exist in the literature. This improvement in the mathematical model offers the possibility of implementing other types of controllers that allow for the testing of different strategies of the floating hybrid control system, with the aim of maximizing energy production while ensuring the structural stability of the floating hybrid system.

show abstract

Section: Introductionmentioning

confidence: 93%

“…This singularity is avoided by forcing the value of ani f (t) not to take values less than −1. This is expressed mathematically in Equation (31).…”

Section: •Aximentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

BEM Turbine Model and PID Control System of a Floating Hybrid Wind and Current Turbines Integrated Generator System

Tamarit,

García,

Quiles

et al. 2023

JMSE

View full text Add to dashboard Cite

show abstract

“…The first example is that developed in [12] in the Delft3DFlow code. The second is the model developed for the regional code SHYFEM, as described in [13]. The application of a BEM-based model allows for the prediction of turbine behaviour in terms of power output and wake development, i.e., the flow field surrounding the turbine, based on the local flow conditions (occurring at the considered blade element) and the geometric design of the specific turbine under consideration.…”

Section: Introductionmentioning

confidence: 99%

Vertical-Axis Tidal Turbines: Model Development and Farm Layout Design

Pucci,

Spina,

Zanforlin

2024

Energies

Self Cite

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In this paper, we propose a new 3D model for vertical-axis tidal turbines (VATTs) embedded in the shallow-water code SHYFEM. The turbine model is based on the Blade-Element∖Momentum (BEM) theory and, therefore, is able to predict turbine performance based on the local flow conditions and the geometric characteristics of the turbine. It is particularly suitable for studying turbine arrays, as it can capture the interactions between the turbines. For this reason, the model is used to test a tidal farm of 21 devices with fluid dynamic simulations. In particular, we deploy the farm at Portland Bill, which is a marine site characterised by a wide spread in the direction of the tidal currents during a flood-ebb tide cycle. We optimised the lateral and longitudinal spacing of the turbines in a fence using computational fluid dynamics simulations and then performed a sensitivity analysis by changing the distance between the fences. The results show that the greater the distance between the fences, the higher the power output. The increase in power generation is around 16%, but this implies a huge increase in the horizontal extent of the farm. Further assessments should be carried out, as the expansion of a marine area dedicated to energy exploitation may conflict with other stakeholder interests.

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“…Furthermore, it does not account for parasitic drag on the rotor and support walls in both turbine configurations (Muchala and Willden, 2017). The Blade Element Momentum (BEM) theory, which is computationally effective for lift-dominated aerofoils (Koh and Ng, 2016), is found unsuitable for drag-dominated hydrofoils that are not always NACA-series type (Pucci, et al, 2022). Thus, it is necessary to explore a sustainable computation method capable of testing the performance of various tidal turbine designs.…”

Section: Introductionmentioning

confidence: 99%

Parametric Optimization Analysis of Pinwheel and Savonius Drag-Dominant Tidal Turbines Performance with Moment Balancing Method

Zhang,

Ng,

Shivansh

2023

Preprint

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Drag-dominant tidal turbine energy holds tremendous clean energy potential but faces significant hurdles as unsuitability of Disk Actuator theory due to the varying swept blockage area, unaccounted bypass flow downstream interaction and rotor parasitic drag whereas Blade Element Momentum theory is computably effective for majorly 3-blade lift-dominated aerofoil. This study proposes a novel method to find the optimal TSR of any turbine with a cost-effective and user-friendly Moment Balancing algorithm to support robust tidal energy development. Performance analysis CFD study of Pinwheel and Savonius tidal turbines was carried out. Dynamic TSR matrix was developed with varying rotational speeds and fluid velocities for reliability, unlike previous works simulated at a fixed fluid velocity. Novel parameters such as thrust and idle moment are introduced as functions of only inlet fluid velocity and rotational speed respectively. These relationships are verified through regression analysis, and the turbines' net moment equations are established based on these parameters. Rotational speed was a reliable predictor for Pinwheel's idle moment, while inlet velocity was a reliable predictor for thrust moment in both models. The optimal (Cp, TSR) values for Pinwheel and Savonius turbines were (2.37, 0.223) and (0.63, 0.16) respectively, within an acceptable error range for experimental validation.

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A BEM-Based Model of a Horizontal Axis Tidal Turbine in the 3D Shallow Water Code SHYFEM

Cited by 5 publications

References 25 publications

BEM Turbine Model and PID Control System of a Floating Hybrid Wind and Current Turbines Integrated Generator System

BEM Turbine Model and PID Control System of a Floating Hybrid Wind and Current Turbines Integrated Generator System

Vertical-Axis Tidal Turbines: Model Development and Farm Layout Design

Parametric Optimization Analysis of Pinwheel and Savonius Drag-Dominant Tidal Turbines Performance with Moment Balancing Method

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