Numerical and experimental study on icing detection of wind turbine blade based on ultrasonic guided wave

Zhu, Chengxiang; Zhang, YuLei; Zhu, Chunling; Zhao, Weiwei

doi:10.1360/sspma2016-00290

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The research in China started relatively late. Researchers from Ningbo University [11] used the potential function method to derive Lamb wave dispersion curves under different ice thickness conditions; Researchers from Nanjing University of Aeronautics and Astronautics [12,13] used global matrix method and semi analytical finite element method to obtain Lamb wave dispersion curves in different ice. By using numerical simulation and experimental research methods, the effects of ice with different thicknesses and lengths on the propagation of Lamb waves were compared and analysed.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Lamb Wave Propagation in Ice

Zhang,

Xiong

et al. 2024

J. Phys.: Conf. Ser.

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Lamb wave is one of the most used ultrasonic guided waves, which has a wide application prospect in the field of aircraft icing detection. The platform of Lamb wave propagation based on piezoelectric wafer was used as the physical model, and COMSOL software was used as the numerical calculation tool to simulate the propagation of Lamb wave in different thickness, length and types of ice. The results showed that the attenuation of voltage amplitude increases with the thickness of ice in a certain range. The time delay of Lamb wave B1 mode at the receiving end increases linearly with the increase of ice length. As the mechanical parameters of ice layer decrease, the attenuation of voltage amplitude and the time delay of Lamb wave B1 mode increase gradually. The propagation characteristics of Lamb wave in ice are preliminarily proved, which provides a theoretical reference for the subsequent propagation experiments of Lamb wave in ice.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Lamb Wave Propagation in Ice

Zhang,

Xiong

et al. 2024

J. Phys.: Conf. Ser.

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Analysis method and experimental study of ice accumulation detection signal based on Lamb waves

ZHANG,

et al. 2024

Chinese Journal of Aeronautics

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Methods and Criterion for Adaptive Ice Accretion Simulation: Mesh Boundary Merge and Reconstruction

Tong

Sun

et al. 2020

Int. J. Appl. Mechanics

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The strong coupling effect of two-phase flow and ice accompanies the ice accretion process of aircraft and wind turbine in damp and cold environment. A method based on the Eulerian two-phase flow, domain discretization of finite volume method (FVM) and finite element method (FEM), and fluid–solid coupling for numerical simulation of ice accretion is presented in this paper. In addition, the icing process of two-dimensional (2D) ice accretion on airfoils is investigated. It is found that the difference between simulation results and experimental data comes from the phase changes of local collection efficiency [Formula: see text], which is a function of local vortex strength and changes with time. Furthermore, with the ice accretion, it is easy to generate a negative or distortion grid because of the inappropriate mesh boundary merge and reconstruction, leading to an inaccurate ice prediction result. Based on the influence region of icing accretion and capturing the complex flow characteristics of the near-wall region, a dynamic and partition adaptive grid reconstruction strategy between macroscopic ice layer and microscopic ice crystal growth process is established. This is then used to build the ice accretion step adjustment strategy for multi-step simulation method under different icing conditions. The droplet collection efficiency distribution is modified by considering the vortex structure in the near-wall region. For verification purposes, multi-step simulation results for ice accretion of NACA0012 airfoil and large camber and strong separation airfoil under specified icing conditions are compared with the corresponding experimental data and some previously predicted results. The results of quantitative comparison of ice shape indicate that the current calculation method has better consistency with the experimental data, especially for glaze ice. The similarity of ice shape is more than 20% higher than the previous prediction results, showing that the time-space adaptive adjustment strategy has good robustness and accuracy for ice prediction.

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Numerical and experimental study on icing detection of wind turbine blade based on ultrasonic guided wave

Cited by 3 publications

References 4 publications

Numerical Simulation of Lamb Wave Propagation in Ice

Numerical Simulation of Lamb Wave Propagation in Ice

Analysis method and experimental study of ice accumulation detection signal based on Lamb waves

Methods and Criterion for Adaptive Ice Accretion Simulation: Mesh Boundary Merge and Reconstruction

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