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Simulation of SLD Impingement on Wind Turbine Blade Airfoil
  • ISSN号:0258-1825
  • 期刊名称:《空气动力学学报》
  • 时间:0
  • 分类:TN925[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构:[1]Key Laboratory of Fundamental Science for National Defense Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R. China, [2]Science and Technology on Space Physics Laboratory, Beijing 100076, P.R. China
  • 相关基金:supported by the National Basic Research Program of China(″973″Program)(No.2014CB046200);the National Natural Science Foundation of China(Nos.11402114,51506089);the Fundamental Research Funds for Central Universities;Nanjing University of Aeronautics,and Astronautics Basic Scientific Research Projects for Youth Science(No.NS2014014)
中文摘要:

Accurate prediction of droplet impingement on wind turbine blade is one of the most important premises of anti-icing and de-icing system design.In a super-cooled large droplets(SLD)conditions,droplet no longer maintains a sphere shape,and it may deform,break up,and splash when moving or impinging on the surface.Semi-empirical models of droplet dynamic behaviours are embedded into the Eulerian droplet model to improve the accuracy of the numerical simulation of droplet impingement limits and local collection efficiency.Eulerian droplet model(Model 1)for small droplets and improved Eulerian droplet model(Model 2)for large droplet are both validated by comparing to the wind tunnel experiment results.Using the proposed methods,droplet impingement limitation and local collection efficiency on the S809 airfoil are calculated in various conditions.A detailed derivation of Model 1and Model 2is presented along with a comparison of numerical trajectories,drag coefficient and collection efficiency distributions.The results show that droplet dynamic behaviours,including splashing,break-up and deforming,must be considered to accurately simulate the impingement behaviour in the SLD conditions.And with the increase of the droplet diameters,the effects of the droplet dynamic behaviors on the impingement characteristics are more obvious.

英文摘要:

Accurate prediction of droplet impingement on wind turbine blade is one of the most important premises of anti-icing and de-icing system design. In a super-cooled large droplets (SLD) conditions, droplet no longer maintains a sphere shape, and it may deform, break up, and splash when moving or impinging on the surface. Semi-empirical models of droplet dynamic behaviours are embedded into the Eulerian droplet model to improve the accuracy of the numerical simulation of droplet impingement limits and local collection efficiency. Eulerian droplet model ( Model 1) for small droplets and improved Eulerian droplet model ( Model 2) for large droplet are both validated by comparing to the wind tunnel experiment results. Using the proposed methods, droplet impingement limitation and local collection efficiency on the $809 airfoil are calculated in various conditions. A detailed derivation of Model 1 and Model 2 is presented along with a comparison of numerical trajectories, drag coefficient and collec- tion efficiency distributions. The results show that droplet dynamic behaviours, including splashing, break-up and deforming, must be considered to accurately simulate the impingement behaviour in the SLD conditions. And with the increase of the droplet diameters, the effects of the droplet dynamic behaviors on the impingement characteris- tics are more obvious.

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期刊信息
  • 《空气动力学学报》
  • 中国科技核心期刊
  • 主管单位:中国空气动力研究与发展中心
  • 主办单位:中国空气动力学会
  • 主编:邓小刚
  • 地址:四川省绵阳市二环路南段6号13-11信箱
  • 邮编:621000
  • 邮箱:kqdlxxb@aas.cardc.com
  • 电话:0816-2463287
  • 国际标准刊号:ISSN:0258-1825
  • 国内统一刊号:ISSN:51-1192/TK
  • 邮发代号:62-27
  • 获奖情况:
  • 1997年获中国科协评比的“全国优秀科技期刊二等奖”,1997年获中宣部、国家新闻出版局、国家科委“第二...
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  • 荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:6089