Fluid-Structure Interaction of Wind Turbine Blade Using Four Different Materials: Numerical Investigation

Roul, Rajendra; Kumar, Awadhesh

doi:10.3390/sym12091467

Cited by 21 publications

(18 citation statements)

References 35 publications

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“…The SST k-ω model is one of the popular two-equation RANS models; it accounts for the transport of the turbulent shear stress and provides highly exact predictions of the onset and the amount of flow separation under adverse pressure gradients. The detailed equations of the SST k-ω model are presented in [26].…”

Section: Turbulence Modelmentioning

confidence: 99%

Evaluation of Shear Stress Transport, Large Eddy Simulation and Detached Eddy Simulation for the Flow around a Statically Loaded Tire

Zhou

Chen

et al. 2021

Symmetry

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To select a more suitable turbulence model to study tire aerodynamics, the characteristics of a deformed profile of a 185/65 R14 passenger tire were reproduced using 3D printing technology. Based on the distance from automobile chassis to the ground, a partially loaded tire model with a height of 150 mm was selected in this paper, and the surface pressure coefficient of the tire model was determined using a wind tunnel test. A computational fluid dynamics (CFD) model was established according to the tire wind tunnel test. The surface pressure coefficient results of three turbulence models, shear stress transport (SST) k-ω, large eddy simulation (LES), and detached eddy simulation (DES) were obtained. Compared with the wind tunnel test results, the mean relative errors of the surface pressure coefficients predicted using SST, LES, and DES in the longitudinal section were 22.4%, 20.9%, and 14.8%, respectively. The LES and DES can capture details of the unsteady flow field that were not predicted by SST. By synthetically analyzing the results of the surface pressure coefficient and flow fields, the DES model is more advantageous than the other two models in predicting the flow characteristics around a statically loaded tire. This study can help designers in the tire industry to apply these cost-effective tools for minimizing the aerodynamic drag of a new tire design.

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Section: Turbulence Modelmentioning

confidence: 99%

Evaluation of Shear Stress Transport, Large Eddy Simulation and Detached Eddy Simulation for the Flow around a Statically Loaded Tire

Zhou

Chen

et al. 2021

Symmetry

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“…Finally, by combining Equations (7)- (12) and Equations (13) and (14), the following equations are obtained as:…”

Section: Analytical Modelmentioning

confidence: 99%

“…Therefore, wind loads should not excite the vibration modes of the blades to avoid excessive vibration displacements [11]. Briefly, the structural dynamic and aeroelastic behaviour of wind turbines should be considered during their design process [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of Composite Wind Turbine Blades as Beams: An Analytical and Numerical Study

et al. 2020

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This study focuses on the dynamic modelling and analysis of the wind turbine blades made of multiple layers of fibre reinforced composites and core materials. For this purpose, a novel three-dimensional analytical straight beam model for blades is formulated. This model assumes that the beam is made of functionally graded material (FGM) and has a variable and asymmetrical cross section. In this model, the blades are assumed to be thin, slender and long with a relatively straight axis. They have two main parts, namely the core and the shell. The so-called core consists of a lightweight isotropic foam material, which also adds significant damping to the system. The core material is covered by the shell, which is modelled using homogenous and orthotropic material assumptions as the structure is reinforced with continuous fibres. Therefore, the blades are modelled under a straight beam with varying cross-section assumptions, in which the effective elastic properties are acquired by homogenizing the cross section. The beam formulation for modelling the system is performed both analytically and numerically with the finite element method. The results of both methods are in well agreement. The maximum deviation between the results is found below 4%.

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“…The influence of the generator was negligible at low wind speeds, but in any case, the protective cover was useful to the loss caused by the erosion of the airfoil. Roul [23] used finite element analysis (FEA) methods to study the aerodynamics and structural analysis of wind turbines, and found that the pitch angle had a prominent influence on the output of wind turbines, which could provide a new idea for turbine blade erosion protection.…”

Section: Introductionmentioning

confidence: 99%

Solid Particle Erosion Area of Rotor Blades: Application on Small-Size Unmanned Helicopters

et al. 2021

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Rotor blades play an important role in unmanned helicopters, and it is of great significance to study the erosion of rotor blades. In this study, titanium alloy (Ti-4Al-1.5Mn) was used as the helicopter rotor blades’ surface material. The commercial software Ansys-Fluent 18.0 was mainly used to study the erosion of solid particles on the helicopter rotor blades. The moving mesh method and the discrete phase method (DPM) were used to construct an erosion model of the blades at different speeds (500, 1000, or 2000 rpm), and at different particle mass flow rates (0.5, 1, or 1.5 kg/s). The results show that the erosion of helicopter blades is mainly observed at the leading edge and at the tip of the blades. At different particle mass flow rates, greater particle mass flow rates lead to greater DPM erosion rates. As the blade speed increases, the maximum DPM erosion rate decreases, but the severely eroded area increases. Finally, the values of the severely eroded area of the helicopter rotor blades and the ratios of the severely eroded area growth are obtained through the image processing method.

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Fluid-Structure Interaction of Wind Turbine Blade Using Four Different Materials: Numerical Investigation

Cited by 21 publications

References 35 publications

Evaluation of Shear Stress Transport, Large Eddy Simulation and Detached Eddy Simulation for the Flow around a Statically Loaded Tire

Evaluation of Shear Stress Transport, Large Eddy Simulation and Detached Eddy Simulation for the Flow around a Statically Loaded Tire

Dynamic Analysis of Composite Wind Turbine Blades as Beams: An Analytical and Numerical Study

Solid Particle Erosion Area of Rotor Blades: Application on Small-Size Unmanned Helicopters

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