Dynamic stall characteristics of wind turbine airfoil in sand-wind environment

Wang, Qing; Yu, Muyao; Li, Deshun; Li, Rennian

doi:10.1016/j.oceaneng.2023.114080

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…Salem (Salem et al , 2013) developed a CFD model coupled with a sand particle deposition model to predict the airfoil profile for sand deposition and calculate the aerodynamic characteristics of the sand deposition airfoil profile. Wang (Wang et al , 2023) and Li (Li et al , 2021) conducted a study of the dynamic stall of the S809 airfoil in a sandy environment. Hasan (Hasan et al , 2022b; Hasan and P, 2022a) studied the influence of supercritical airfoil on helicopter characteristics and found that supercritical airfoil can increase efficiency and produce good aerodynamic characteristics.…”

Section: Introductionmentioning

confidence: 99%

Helicopter airfoil aerodynamic characteristics and rotor trim in sandy environments

Huang,

Cao,

Wang

2024

AEAT

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Purpose The sandy environment is one of the typical environments in which helicopters operate. Air-sand two-phase flow in sandy environments may be an important factor affecting flight safety. Taking a typical example, this paper aims to investigate the aerodynamic and rotor trim characteristics of the UH-60 helicopter in sandy environments. Design/methodology/approach A computational study is conducted to simulate the air-sand flow over airfoils based on the Euler–Lagrange framework. The simulation uses the S-A turbulence model and the two-way momentum coupling methodology. Additionally, the trim characteristics of the UH-60 rotor are calculated based on the isolated rotor trim algorithm. Findings The simulation results show that air-sand flow significantly affects the aerodynamic characteristics of the SC1095 airfoil and the SC1094R8 airfoil. The presence of sand particles leads to a decrease in lift and an increase in drag. The calculation results of the UH-60 helicopter rotor indicate that the thrust decreases and the torque increases in the sandy environment. To maintain a steady forward flight in sandy environments, it is necessary to increase the collective pitch and the longitudinal cyclic pitch. Originality/value In this paper, the aerodynamic characteristics of airfoils and the trim characteristics in the air-sand flow of the UH-60 helicopter are discussed, which might be a new view to analyse the impact of sandy environments on helicopter safety and manoeuvring.

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Section: Introductionmentioning

confidence: 99%

Helicopter airfoil aerodynamic characteristics and rotor trim in sandy environments

Huang,

Cao,

Wang

2024

AEAT

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“…The efficiency of a wind turbine would be reduced in sandstorm weather [20]. The combination of different types of wave energy converters can be more effective in suppressing the motion response while increasing the total wave energy generation [21].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of a Flexible Multi-Body in Large Wind Turbines: A Review

Xue

Zhang

2023

Sustainability

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Dynamic response of flexible multi-body large wind turbines has been quickly growing in recent years. With the new normal economic policy, the economy of China is developing innovatively and stably. New energy development and utilization is an important strategy for people’s lives and economic development around the world. It is feasible to analyze from a broad perspective. In particular, the development and application of wind power is affecting the economic development of industry to a certain extent. Persistent and significant large wind turbines have cast concern over the prospects of wind power technology, and a comprehensive development potential of wind power technology has been analyzed its potential use in the future. The multi-body dynamics method can better analyze and describe the impact of flexible blade elastic deformation on motion characteristics and provides a practical analysis method for the aeroelastic stability analysis and control system design of wind turbines.

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