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

Yao, Yongming; Bai, Xupeng; Liu, Huiying; Li, Tianyu; Zhou, Guangli

doi:10.3390/sym13020178

Cited by 5 publications

(3 citation statements)

References 25 publications

(29 reference statements)

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“…Liu [19] used the DPM model to simulate erosion of particles on turbine blades, and found that capture efficiency of blades increases firstly and then decreases with particle size. Yao [20] employed the same method and suggested that as particle mass flow increases, the DPM erosion rate of blade increases significantly. Noon and Kim [21] explored the impact of different concentrations of sediment particles on the performance of Francis turbine and found that as the concentration increases, the efficiency loss of Francis turbine also increases.…”

Section: Figure 1 Process Of Closed Brayton Cyclementioning

confidence: 99%

Effect of Carbon Particles on Aerodynamic Performance of a Radial Inflow Turbine in Closed Brayton Cycle

2023

Teh. vjesn.

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For the closed Brayton cycle using carbon heaters, working fluid contains some solid particles generally. These impurities will enter turbine along with gas, influence aerodynamic performance, and even make turbine work under off-design condition. Therefore, it is necessary to study the influence of particles on turbine. In this paper, a turbine using argon with carbon particles as working fluid is investigated. Particles are assumed to have no volume and are evenly divided into ten different sizes. Based on the discrete phase model (DPM), CFD method is adopted to simulate turbine flow field, and influences of carbon particle mass fraction, particle diameter and incident velocity on aerodynamic performance are analyzed. The results indicate that as particle mass fraction increases, total pressure, static pressure and Mach number decrease significantly, isentropic efficiency decreases slightly, while temperature increases. Collision and rebound of particles in flow field are more intense with a larger particle diameter, but flow field is less influenced under the same mass fraction due to decrease of particle number. Incident velocity has little effect on aerodynamic performance; however, with increase of incident velocity, diameter of particles on blade surface is larger and collision of particles is more intense especially in nozzle. These results will help understand the influence of solid particles on turbines.

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Section: Figure 1 Process Of Closed Brayton Cyclementioning

confidence: 99%

Effect of Carbon Particles on Aerodynamic Performance of a Radial Inflow Turbine in Closed Brayton Cycle

2023

Teh. vjesn.

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“…A similar study by Özen and Gedikli [17] investigated experimentally and numerically the solid particle erosion behaviors of helicopter rotor blades covered with Ti-6Al-4V, SS304, Al6061-T6, and Ni materials. Yao et al [18] used the ANSYS-Fluent software to study the solid particle erosion wear behavior of rotor blades made up of Ti alloy at different rotational speeds and particle flow rates. On the other hand, it has been numerically demonstrated in another study that erosion protection coatings can cause a reduction in the aerodynamic efficiency of the rotor [19].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Solid Particle Erosion Performance of Aluminum Alloy Materials for Leading-Edge Slat

Budur,

Özen,

Öztürk

et al. 2024

Tribol. Ind.

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This study aims to characterize solid particle erosion behaviors of three different aluminum alloys (AA2024-T351, AA6061-T651, and AA7075-T651) and reveal their erosion performances on leading-edge slat of airplane wings. Solid particle erosion tests were conducted using silicon carbide erodent particles under the conditions of six different impingement angles (20°-90°) and four different impact velocities (70-192 m/s). The erosion simulations of a leading-edge slat of the aforementioned aluminum alloys were numerically simulated at four different rotation angles (0°-15°) for three different impact velocities (130-250 m/s). A commercial ANSYS Fluent software using the Euler-Lagrange equation and an experimental data-based erosion model was used for the erosion simulations. The experimental results showed that the erosion rate increases with increasing impact velocity and the maximum erosion rate is obtained at the impingement angle of 30° which reflects the ductile manner. Of the three aluminum alloys, the AA6061-T651 exhibited the worst erosion behavior followed by the AA2024-T351 sample, whereas the AA7075-T651 had the best erosion resistance. The numerical results indicated that the erosion rate values of slat surfaces made up of three different aluminum alloys showed a slight increase after a slat rotation angle of 5°.

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“…1 The impact of erosion on the reliability of machine elements and high wear costs are broadly recognized. 2 It is commonly seen in oil pipelines, 3 rotor blades of helicopters, [4][5][6] blades of pumps that transfer liquid, 7 wind turbines, 8,9 and high-speed vehicles, especially aircrafts. 10 In commercial aircrafts, it is seen in radomes, cockpit windows, the leading edge of the wings, horizontal and vertical stabilizers, and gas turbines.…”

Section: Introductionmentioning

confidence: 99%

Investigation of particle erosion of polytetrafluoroethylene and its composites

Özzaim

Korkusuz

Fi̇dan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Modern-day engineering applications favor polymers and polymer composites on the grounds of their high specific properties. They can offer many different advantages compared to metals; such as high strength-to-weight ratio, ease of production, but their erosion resistance is weaker. In polymer composites, material loss occurs because of high-speed and repeated exposure to erosive particles, therefore service performance and life of the parts are adversely affected. Due to this, it is crucial to predict the particle erosion that may occur in engineering applications and to know the erosive wear behavior of the materials well. Polytetrafluoroethylene and its composites are widely used in tribological applications because of their load-carrying capacity, self-lubricating, and low-density properties, but there is inadequate literature on particle erosion behavior. In this study, particle erosion behaviors of polytetrafluoroethylene, its randomly oriented short glass fiber, and carbon particle and bronze particle-reinforced composites were investigated under different test conditions. Two different types of erosive particles (garnet and alumina) were used to present the effect of erodent type on particle erosion behavior. After particle erosion tests, surface topographies were examined by an optical profilometer, and surface morphologies were examined by scanning electron microscopy. It has been found that the type of reinforcement and the type of erodent significantly affects the particle erosion behavior of polytetrafluoroethylene and its composites.

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

Cited by 5 publications

References 25 publications

Effect of Carbon Particles on Aerodynamic Performance of a Radial Inflow Turbine in Closed Brayton Cycle

Effect of Carbon Particles on Aerodynamic Performance of a Radial Inflow Turbine in Closed Brayton Cycle

Investigation on Solid Particle Erosion Performance of Aluminum Alloy Materials for Leading-Edge Slat

Investigation of particle erosion of polytetrafluoroethylene and its composites

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