文章摘要
王加乐, 程邦勤, 冯路宁, 李〓军, 姚耀泽, 费晓文.叶片式旋流畸变发生器生成旋流角的影响因素[J].空军工程大学学报:自然科学版,2020,21(3):31-37
叶片式旋流畸变发生器生成旋流角的影响因素
An Investigation on Affecting Factors of Swirl Angle Generated by Stream Vane Swirl Distortion Generator
  
DOI:
中文关键词: 叶片  旋流角  施流畸变发热  CDA叶型  拟合公式
英文关键词: blade  swirl angle  swirl distortion generator  CDA- profile  fitting formula
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作者单位
王加乐, 程邦勤, 冯路宁, 李〓军, 姚耀泽, 费晓文 空军工程大学航空工程学院 西安 710038 
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中文摘要:
      为提高叶片式旋流畸变发生器的设计效率,研究叶片式旋流畸变发生器生成旋流角度的影响因素,应用某型CDA叶型(可控扩散叶型)设计了一组整体涡旋流畸变发生器,并利用CFD计算研究了不同几何参数和外界条件对旋流角生成的影响。结果表明:旋流角的大小受叶片稠度和安装角的影响最大;相对而言,畸变发生器外径以及旋流向下游的发展对旋流角生成的影响较小;在所研究的亚音速范围内,马赫数与旋流角近似呈指数函数关系。综合以上影响因素,给出叶片式旋流发生器生成旋流角的拟合公式,利用拟合公式设计了对涡旋流畸变网,试验数据表明拟合公式可信度较高。
英文摘要:
      A set of bulk swirl distortion generators is designed by using a certain type of CDA profile (controllable diffusion profile) in order to investigate the effect mechanism of swirl angle generated by the stream vane swirl distortion generator and improve the design efficiency of the StreamVane swirl distortion generator. The influence of different geometric parameters and external conditions on the formation of swirl angle is studied by CFD. The results show that both the blade solidity and the installation angle have the greatest influence on the swirl angle; Relatively speaking, the outside diameter of the distortion generator and the development of the swirl flow have little influence on the generation of the swirl angle; The relationship between Mach number and swirl angle is exponential within the range of the subsonic speed studied in this paper. On the basis of the above mentioned factors, a fitting formula of swirl angle generated by the stream vane swirl distortion generator is given, and a twin swirl distortion screen is designed by using the fitting formula. The experiment result show that the fitting formula is high in reliability.
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