Investigations of HAWT Airfoil Shape Characteristics and 3D Rotational Augmentation Sensitivity Toward the Aerodynamic Performance Improvement

Kim, Youjin; Bangga, Galih; Delgado, Antonio

doi:10.3390/su12187597

Cited by 3 publications

(3 citation statements)

References 37 publications

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“…For exterior areas and free shear flow, the k-ε model is employed [36]. This model has been widely utilized by academics to examine the aerodynamic functionality of wind turbines with good convergence and accuracy [5,21,37,38].…”

Section: Turbulence Modelingmentioning

confidence: 99%

“…Currently, the numerical methods mainly contain the Blade Element Momentum method (BEM) [20][21][22], Vortex Wake method (VWM) [23,24], and Computational Fluid Dynamics (CFD) [25,26]. These are the three main numerical research techniques used to study the aerodynamic characteristics of wind turbines.…”

Section: Introductionmentioning

confidence: 99%

“…These are the three main numerical research techniques used to study the aerodynamic characteristics of wind turbines. Many researchers have studied the aerodynamic performance of wind turbines with different airfoil shapes and sizes by using the blade element momentum method and modification method [21,[27][28][29]. Sang et al [30] confirmed the feasibility of the new technique through numerical simulation analysis and comparison.…”

Section: Introductionmentioning

confidence: 99%

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The Aerodynamic Performance of Horizontal Axis Wind Turbines under Rotation Condition

Li,

Xiong,

et al. 2023

Sustainability

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The near-surface unsteady incoming flow in the atmospheric boundary layer has a great influence on the aerodynamic performance of horizontal axis wind turbines. To consider the effect of the rotation of the blade on the aerodynamic state of a wind turbine near the ground, the fluid-structure interaction (FSI) method based on the shear stress transfer (SST) turbulence model is applied to analyze the unsteady aerodynamic interaction characteristics including solving the velocity field, pressure field, structural response state, variation of deformation, and output power in the flow field of the wind turbine. The deformation fluctuation points of different blades in the upwind and downwind regions were observed to move towards the blade tips with increasing rotational speed. The variations of flow velocity and pressure that occur along the radial direction of the wind turbine are observed. The velocity increases from the root to the tip of the blade. The tower shadow effect causes the blade deformation in the upper and lower wind areas to fluctuate. It is more obvious when the blade overlaps with the tower; the overall displacement under the effect of rotation has a large increase compared with the shutdown. The peak increments reach 2.1437 mm to 0.8674 mm; under the effect of inter-action wind speed increased, wind turbine output power increased from 68.33 kW to 84.33 kW, respectively. It helps to better understand the aerodynamic performance of wind turbines, prolong the service life, and optimize the design.

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Section: Turbulence Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Aerodynamic Performance of Horizontal Axis Wind Turbines under Rotation Condition

Li,

Xiong,

et al. 2023

Sustainability

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Progress and Outlook in Wind Energy Research

Bangga

2022

Energies

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Wind energy research plays a vital role in the possibility of the success story of wind energy as one of the most promising sustainable energy sources. This continuous process has been achieved from the era of small wind turbines to the current Multi-WM standard and beyond. In this editorial paper, the progress and future outlook of wind energy research in two main aspects are discussed. The first aspect is in the area of wind turbine design and computations which covers engineering modeling and high-fidelity approaches. The second part of the paper discusses the usage of data-driven approaches in wind energy research. The paper compiles and presents the key findings of several recent studies in these two areas of research. The discussion of the paper is focused on the technical aspects of wind energy modeling. The main aim is to provide an overview about the direction of current research and its importance to meet future expectations.

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Experimental optimization of the SG6043 airfoil for horizontal axis wind turbine using Schmitz equations

Seyhan,

Tanürün

2024

International Journal of Energy Studies

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This study presents the experimental optimization of the SG6043 airfoil for horizontal axis wind turbines (HAWTs) using the Schmitz equation, focusing on enhancing power output and elucidating the surface flow structure. Two blade models, M1 (conventional) and M2 (optimized), were designed and tested at rotational speeds of 400 rpm and 600 rpm across a range of tip speed ratios (TSR). The M2 model, optimized using Schmitz equations, demonstrated significantly improved performance compared to the M1 model at both rotational speeds. At 400 rpm, the maximum power coefficient (CP) for M1 was 0.274, while M2 reached 0.419, indicating a 52.91% improvement. At 600 rpm, M1 achieved a maximum CP of 0.293, whereas M2 attained 0.458, representing a 56.31% enhancement. The M2 model also showed superior performance at higher TSRs, with the highest percentage increase in CP recorded at 4.9 TSR, reaching 574.54%. Additionally, dynamic surface oil-flow visualization experiments were conducted to examine flow behavior on the blade surfaces. Results indicated better flow attachment in the M2 blade due to its optimized twist angle and chord length, particularly in the mid-section, leading to delayed flow separation. The reattachment observed on the suction side of the M2 model, following the laminar separation bubble (LSB), which was absent in the M1, contributed to its higher aerodynamic efficiency and overall power performance. These findings confirm that the optimized SG6043 airfoil design, guided by Schmitz equations, offers significant improvements in HAWT performance, particularly under varying operational conditions.

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Investigations of HAWT Airfoil Shape Characteristics and 3D Rotational Augmentation Sensitivity Toward the Aerodynamic Performance Improvement

Cited by 3 publications

References 37 publications

The Aerodynamic Performance of Horizontal Axis Wind Turbines under Rotation Condition

The Aerodynamic Performance of Horizontal Axis Wind Turbines under Rotation Condition

Progress and Outlook in Wind Energy Research

Experimental optimization of the SG6043 airfoil for horizontal axis wind turbine using Schmitz equations

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