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气膜孔附近粒子沉积特性的数值研究

周君辉 张靖周

周君辉, 张靖周. 气膜孔附近粒子沉积特性的数值研究[J]. 航空动力学报, 2014, 29(9): 2166-2173. doi: 10.13224/j.cnki.jasp.2014.09.021
引用本文: 周君辉, 张靖周. 气膜孔附近粒子沉积特性的数值研究[J]. 航空动力学报, 2014, 29(9): 2166-2173. doi: 10.13224/j.cnki.jasp.2014.09.021
ZHOU Jun-hui, ZHANG Jing-zhou. Numerical investigation on particle deposition characteristics in vicinity of film cooling holes[J]. Journal of Aerospace Power, 2014, 29(9): 2166-2173. doi: 10.13224/j.cnki.jasp.2014.09.021
Citation: ZHOU Jun-hui, ZHANG Jing-zhou. Numerical investigation on particle deposition characteristics in vicinity of film cooling holes[J]. Journal of Aerospace Power, 2014, 29(9): 2166-2173. doi: 10.13224/j.cnki.jasp.2014.09.021

气膜孔附近粒子沉积特性的数值研究

doi: 10.13224/j.cnki.jasp.2014.09.021
基金项目: 

国家自然科学基金(51276090);江苏省普通高校研究生科研创新计划(CXLX13_166);中央高校基本科研业务费专项资金

详细信息
    作者简介:

    周君辉(1984-),男,河南鹤壁人,博士生,主要从事叶轮机械气动热力学研究.

  • 中图分类号: V231.1

Numerical investigation on particle deposition characteristics in vicinity of film cooling holes

  • 摘要: 研究了气膜孔附近的粒子运动与沉积特性,重点研究了粒子直径和气膜出流吹风比对粒子运动与沉积特性的影响. 基于EI-Batsh粒子沉积模型,考虑了粒子的黏附/反弹和离去机制,编制了相应的粒子沉积计算模块集成在Fluent软件中,并利用相关实验数据对该计算方法进行了验证.结果表明:1,2μm直径粒子沉积率随吹风比增大而增大;3,4μm直径粒子沉积率则随吹风比增大而减小.1μm直径粒子易受气膜出流卵形涡对的卷吸作用而沉积于相邻气膜孔之间区域,当吹风比为2时粒子沉积率比吹风比为0时高约5倍;5μm直径粒子运动轨迹受气膜出流影响较小.总体沉积率随吹风比升高而不断降低,吹风比为2时总体沉积率比吹风比为0时减小1.7%.

     

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出版历程
  • 收稿日期:  2013-06-13
  • 刊出日期:  2014-09-28

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