传统的挟沙冲蚀试验台与风沙风洞难以构建均匀风沙流场,难以准确反映风力机叶片的风沙磨损特性。因此,在改造的风沙风洞中,通过对风力机叶片平板试样开展涂层冲蚀磨损试验,探究不同冲击速度、冲击角度及有效截面质量流率对风力机叶片涂层材料冲蚀特性的影响规律。试验结果表明：有效颗粒质量流率一定时,在相同冲击速度与冲击时间内,磨损量在冲击角度约为30°时达到最大。小于30°时,磨损量随冲击角度的增大而快速增加,大于30°时磨损量随冲击角度的增大而逐渐降低;磨损量随冲击速度的增大而增大;磨损量随有效颗粒质量流率的增大而呈线性增大趋势;切削磨损量与总磨损量有相同趋势,冲击磨损量随着冲击角度的增大而逐渐增大。
Abstract
It is difficult to construct a uniform wind sand flow field and accurately reflect the wind sand wear characteristics of wind turbine blades using the traditional sand erosion test-bed and wind sand wind tunnel. Therefore, in this paper, the coating erosion wear tests are carried out on the flat plate samples of wind turbine blades in the modified wind-sand wind tunnel. The influence of different impact velocity, impact angle and effective cross-sectional mass flow rate on the erosion characteristics of wind turbine blade coating materials is researched. The experimental results show that when the effective particle mass flow rate is constant, the impact angle is about 30° under the same impact velocity and impact time, the wear loss reaches the maximum. When the impact angle is less than 30°, the wear loss increases rapidly with the increase of impact angle, and when the impact angle is greater than 30°, the wear loss decreases gradually with the increase of impact angle; The wear loss increases with the increase of impact velocity, and increases linearly with the increase of effective particle mass flow rate. The cutting wear has the same trend as the total wear, and the impact wear increases with the increase of impact angle.
关键词
风洞 /
气固两相流 /
风力机叶片 /
涂层材料 /
固体颗粒冲蚀 /
冲击速度 /
冲击角度
Key words
wind tunnel /
gas-solid two-phase flow /
wind turbine blades /
coating material /
solid particle erosion /
impact velocity /
impact angle
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参考文献
[1] PHAM-THANH N, THO H V, YUM Y J.Evaluation of cavitation erosion of a propeller blade surface made of composite materials[J]. Journal of mechanical science & technology, 2015, 29(4): 1629-1636.
[2] VIGNESHWARAN S, UTHAYAKUMAR M, ARUMUGAPRABU V.A review on erosion studies of fiber-reinforced polymer composites[J]. Journal of reinforced plastics and composites, 2017 , 36(14) : 1019-1027.
[3] MIYAZAKI N.Solid particle erosion of composite materials: A critical review[J]. Journal of composite materials, 2016, 50(23) : 3175-3217.
[4] SAREEN A, SAPRE C A, SELIG M S.Effects of leading edge erosion on wind turbine blade performance[J]. Wind energy, 2014 , 17(10) : 1531-1542.
[5] 董麟. 风沙环境下风力机翼型的气固两相流动特性研究[D]. 兰州: 兰州理工大学, 2014.
DONG L.Study on gas-solid two-phase flow charact-eristics of wind turbine airfoil under wind sand environment[D]. Lanzhou: Lanzhou University of technology, 2014.
[6] 焦灵燕. 翼型及粗糙度对风力机叶片气动性能影响的初探[D]. 呼和浩特: 内蒙古工业大学. 2015.
JIAO L Y.Preliminary study on the influence of airfoil and roughness on aerodynamic performance of wind turbine blade[D]. Hohhot: Inner Mongolia University of technology, 2015.
[7] DOLLINGER C, BALARESQUE N, GAUDERN N, et al.IR thermographic flow visualization for the quantification of boundary layer flow disturbances due to the leading edge condition[J]. Renewable energy, 2019, 138: 709-721.
[8] HAN W, KIM J, KIM B .Effects of contamination and erosion at the leading edge of blade tip airfoils on the annual energy production of wind turbines[J]. Renewable energy, 2017, 115(C): 817-823.
[9] VERMA A S, VEDVIK N P, HASELBACH P U, et al.Comparison of numerical modelling techniques for impact investigation on a wind turbine blade[J]. Composite structures, 2018, 209: 856-878.
[10] FIORE G, SELIG M S.A simulation of operational damage for wind turbine blades[C]//AIAA Applied Aerodynamics Conference, Atlanta, GA, USA, 2014: 2848-2867.
[11] HAMED A, KUHN T P.Effects of variational particle restitution characteristics on turbomachinery erosion[J]. Journal of engineering for gas turbines & power, 1995, 117: 432-440.
[12] 鲁嘉华, 凌志光. 气固两相透平叶片冲蚀特性的气动试验研究[J]. 流体力学实验与测量, 2003, 17(2): 63-69.
LU J H, LING Z G.Aerodynamic experimental study on erosion characteristics of gas-solid two-phase turbine blades[J]. Hydrodynamics experiment and measurement, 2003, 17(2): 63-69.
[13] PATNAIK A, SATAPATHY A, CHAND N, et al.Solid particle erosion wear characteristics of fiber and particulate filled polymer composites: A review[J]. Wear, 2010, 268(1): 249-263.
[14] SANTANA Y Y, BARBERA-SOSA J G L, BENCOMO A, et al. Influence of mechanical properties of tungsten carbide-cobalt thermal spray coatings on their solid particle erosion behaviour[J]. Surface engineering, 2012, 28(4):237-243.
[15] 王帅, 刘小康, 陆龙生. 直流式低速风洞收缩段收缩曲线的仿真分析[J]. 机床与液压, 2012, 40(11): 100-104.
WANG S, LIU X K, LU L S.Simulation analysis of contraction curve of contraction section in DC low speed wind tunnel[J]. Machine tool and hydraulic, 2012, 40(11): 100-104.
[16] 赵煜. 风沙风洞流动特性试验及风力机叶片材料的冲蚀磨损研究[D]. 兰州: 兰州理工大学, 2020.
ZHAO Y.Flow characteristic test of wind tunnel and erosion wear research of wind turbine blade material[D]. Lanzhou: Lanzhou University of technology, 2020.
[17] 马世威, 马玉明, 妖洪林, 等. 沙漠学[M]. 呼和浩特: 内蒙古人民出版社, 1998.
MA S W, MA Y M, YAO H L, et al.Desert science[M]. Hohhot: Inner Mongolia People’s Publishing House, 1998.
[18] 马玉明, 妖洪林, 王林和, 等. 风沙运动学[M]. 呼和浩特: 远方出版社, 2004.
MA Y M, YAO H L, WANG L H, et al.Aeolian kinematics[M]. Hohhot: Yuanfang Publishing House, 2004.
[19] 高君亮, 李玉宝, 虞毅, 等. 毛乌素沙地不同土地利用类型土壤分形特征[J]. 水土保持研究, 2010, 17(6): 224-227.
GAO J L, LI Y B, YU Y, et al.Soil fractal characteristics of different land use types in Mu Us sandy land[J]. Soil and water conservation research, 2010, 17(6): 224-227.
[20] 赵庆云, 张武, 吕萍, 等. 河西走廊"2010.04.24"特强沙尘暴特征分析[J]. 高原气象, 2012, 31(3): 688-696.
ZHAO Q Y, ZHANG W, LYU P, et al.Analysis of characteristics of“2010.04.24”severe sandstorm in Hexi Corridor[J]. Plateau meteorology, 2012, 31(3): 688-696.
[21] 尹树新, 赵亚贤. 西风急流异变对“5.5”西北地区沙尘暴的影响[C]//中国沙尘暴研究北京: 气象出版社, 1997: 65-69.
YIN S X, ZHAO Y X.Influence of westerly jet on Sandstorm in Northwest China[C]. Study on Sandstorm in China. Beijing: Meteorological Press, 1997: 65-69
[22] 李玲萍, 李岩瑛, 刘维成. 河西走廊东部“2018·3·19”强沙尘暴特征分析[J]. 沙漠与绿洲气象, 2020 , 14(2): 10-17.
LI L P, LI Y Y, LIU W C.Analysis on the characteristics of "2018.3.19" severe sandstorm in the east of Hexi Corridor[J]. Desert and oasis meteorology, 2020 , 14(2):10-17.
[23] 段国龙. 风沙环境下钢结构涂层的冲蚀磨损实验研究[D]. 呼和浩特: 内蒙古工业大学,2014.
DUAN G L.Experimental study on erosion wear of steel structure coating in wind sand environment[D]. Hohhot: Inner Mongolia University of Technology, 2014.
[24] 黄超. 挟沙风作用下风力机叶片涂层冲蚀磨损过程试验研究[D]. 呼和浩特: 内蒙古农业大学, 2016.
HUANG C.Experimental study on erosion and wear process of wind turbine blade coating under sand laden wind[D]. Hohhot: Inner Mongolia University of Technology, 2016.
[25] 尹延国, 朱元吉, 胡献国. 水工混凝土冲蚀磨损试验方法的研究[J]. 水利水电技术, 2001, 32(3): 15-18.
YIN Y G, ZHU Y J, HU X G.Study on erosion and wear test method of hydraulic concrete[J]. Water conservancy and hydropower technology, 2001, 32(3): 15-18.
[26] 李德顺, 王成泽, 李银然,等. 叶片前缘磨损形貌特征对风力机翼型气动性能的影响[J]. 农业工程学报, 2017, 33(22):7.
LI D S, WANG C Z, LI Y R, et al.Influence of blade leading edge erosion features on aerodynamic characteristics of wind turbine airfoil[J]. Transactions of the Chinese Society of Agricultural Engineering, 2017, 33(22):7.
[27] 龚玉祥. 风沙环境下风力机翼型的磨损及其St数临界范围研究[D]. 兰州: 兰州理工大学, 2015.
GONG Y X.Study on wear and critical range of St number of wind turbine airfoil in wind sand environment[D]. Lanzhou: Lanzhou University of Technology, 2015.
[28] 赵振希. 基于颗粒Stokes数的风力机叶片冲蚀磨损特性研究[D]. 兰州: 兰州理工大学, 2018.
ZHAO Z X.Research on erosion wear characteristics of wind turbine blades based on particle Stokes number[D]. Lanzhou: Lanzhou University of Technology, 2018.
[29] BITTER J G A. A study of erosion phenomena[J]. Wear, 1963, 6(1): 5-21.
基金
国家自然科学基金（51766009; 51566014）; 甘肃省基础研究创新群体项目（21JR7RA277）; 兰州理工大学红柳杰出青年人才资助计划
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