摘要
本文研究了瞬态热边界条件的处理方法,以ANSYS CFX软件为平台,提出了一种自定义权系数的方法,并利用软件自带的step函数构建权系数的表达式,用于描述全时段内某一边界区域的瞬态换热边界数据,最终应用该方法对某涡轴发动机涡轮叶片成功加载了边界条件,完成了瞬态热分析,为今后发动机零件的三维瞬态热分析提供了参考。
A method based on ANSYS CFX for loading transient heat transfer boundary condition was presented in this paper. The variation of boundary conditions during a full period of time was described by a user defined function varying with several weights in association with CFX self-own step function. This method was successfully used by transient thermal analysis for a typical cooled turbine blade and can be applied to the 3D transient thermal analysis for other engines.
作者
赵明东
李维
赵尊盛
周志翔
Zhao Mingdong, Li Wei, Zhao Zunsheng, Zhou Zhixiang(AECC Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, Chin)
出处
《航空科学技术》
2018年第3期35-39,共5页
Aeronautical Science & Technology
关键词
涡轮叶片
瞬态
热分析
turbine blade
transient
thermal analysis
