Modified Trailing Edge Impact on the Aerodynamic Performance of Wind Turbine Airfoil

Jaafar, R K; Abdelrahman, M.A.; Mourad, Mina G.; Ateeq, Adnan A.; Moawed, M.

doi:10.37934/arfmts.91.2.133144

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…The Navier-Stokes equations presented in the following works [5][6][7][8][9][10] are used to solve a twodimensional domain under the laminar flow mode:…”

Section: Modelling Of a Two-dimensional Domainmentioning

confidence: 99%

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Optimization and Modelling to Enhance Hydroturbine Performance

Daniyar Bossinov,

Gaukhar Ramazanova,

Dinara Turalina

2024

ARASET

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In this study, a new design of a hydroturbine was developed, modelled, and constructed. The unique features of this turbine design required a thorough investigation and optimization process to enhance hydroturbine performance. The paper discusses numerical and experimental results obtained on the hydroturbine. The optimal angle of attack for the inlet flow direction has been computed from numerical modelling. Consequently, data on velocity, pressure, lift, and drag forces along the blade have been obtained. The study also takes into account the operation of the hydroturbine under non-rotating and rotating rotor modes. Performance metrics such as head, torque, hydraulic power, hydroturbine power, and efficiency were then calculated based on water discharge. These performance calculations were conducted using COMSOL Multiphysics, employing Direct Numerical Simulation and k-epsilon methods. Numerical calculations offer a cost-effective approach to reducing the financial burden associated with material costs for manufacturing hydroturbine prototypes.

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“…The Navier-Stokes equations presented in the following works [5][6][7][8][9][10] are used to solve a twodimensional domain under the laminar flow mode:…”

Section: Modelling Of a Two-dimensional Domainmentioning

confidence: 99%

“…On the other hand, the viscous force results from friction and opposes the flow direction. In 2D fluid flow, lift force and drag force expressions discussed in the references [6,7,11] are represented by Eq. (3) and Eq.…”

Section: Computing Lift Force and Drag Forcementioning

confidence: 99%

Optimization and Modelling to Enhance Hydroturbine Performance

Daniyar Bossinov,

Gaukhar Ramazanova,

Dinara Turalina

2024

ARASET

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“…Different types of techniques are applied and tested to observe the pattern of flow around the trailing edge and to study the improvement in lift coefficient. It is seen that modification like use of thick trailing edge airfoil has led to an increase in efficiency by 39.495% with an inclination of airfoil equal to 15° [10]. When air flows along the surface, separation bubbles are formed at the dimple region signifying acceleration of the flow [11].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Dimple Effect on Three-Dimensional Cambered Aircraft Wing

Reshma Sett,

Prathmesh Pravin Verekar,

Mohammad Zuber

2023

ARFMTS

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This paper focuses on aerodynamic analysis over a 3D cambered wing with dimple-like surface modification. Application of the golf ball dimples on airfoils is predicted to be a good alternative for drag reduction. A golf ball with dimples allows for smooth and controlled flight. Models of cambered wings based on NACA 2412 airfoil were created to investigate the dimple effect. A comparative study is carried out between wing models with inward and outward dimples at 50% of chord length locations. Simulations were conducted for two velocities – 30 m/s and 90 m/s and the angle of attacks varying from 0° to 20°. The study is carried out using different platforms for respective processes. Firstly, ANSYS WORKBENCH© and SOLIDWORKS© are used for the geometry creation of the wing model. Next, ANSYS FLUENT© is used for the pre-processing and solver setup stage. Then, TECPLOT©, MATLAB© and FLUENT© are used for the post-processing and analysis stage. The inward dimple showed better aerodynamics when compared with outward dimple and no dimple cases.

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“…Hang et al, [6] measured the performance of the propeller using CFD to predict the aerodynamic characteristics at different propeller disc angles, aerodynamic coefficients of NACA 0012 Airfoil by Abobaker et al, [7], and the aerodynamic performance of hatchback considering the effect of the yaw angle by Cheng et al, [8]. Jaafar et al, [9] modified the trailing edge design to evaluate the impact on the performance of wind turbine airfoils. It shows that the lift coefficient increases due to the angle of the inclined trailing edge.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Kaplan Series Propeller using CFD: Effect of Angle of Attack and Number of Blade Variations

Arifin

Felayati

2023

CFDL

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Kaplan series propeller has the potential to improve ensuring the high ship propulsion performance of the operation. In this study, a Kaplan propeller is evaluated with a Controllable Pitch Propeller (CPP) behavior such as angle of attack and the number of blades. The propeller blades which are studied are 3, 4, and 5 blades with the angle of attack about 10.3⁰, 15.3⁰, and 20.0⁰. The method in this study is using Computational Fluid Dynamic (CFD) simulations. Moreover, surface pressure, thrust, torque, and efficiency are evaluated due to the influence of the angle of attack variations. It has been found that varying the angle of attack significantly affects the distribution of the pressure surface of the propeller. The pressure gradually increases at the higher level of the angle of attack. Furthermore, it is well known that variations in the angle of attack and the number of blades significantly affect propeller performance as expressed by propeller thrust and torque values. Thrust and efficiency tend to increase at higher levels of the angle of attack. However, it tends to decrease at the propeller with more blades on it

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Modified Trailing Edge Impact on the Aerodynamic Performance of Wind Turbine Airfoil

Cited by 4 publications

References 23 publications

Optimization and Modelling to Enhance Hydroturbine Performance

Optimization and Modelling to Enhance Hydroturbine Performance

Comparative Study of Dimple Effect on Three-Dimensional Cambered Aircraft Wing

Numerical Study of Kaplan Series Propeller using CFD: Effect of Angle of Attack and Number of Blade Variations

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