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多斜孔层板发散冷却流动传热特性

Characteristics of Flow Heat Transfer of Transpiration Cooling for Laminated Plates with Inclined-Multi Holes
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摘要 针对不同孔排数的 3种孔板结构 ,进行了多斜孔全气膜发散冷却流动换热特性的数值模拟研究 ,通过考察气膜层流场与层板冷效 ,分析了多斜孔层板内复杂的流动换热效果。结果表明 ,小孔射流在层板表面形成稳定的气膜 ,A型孔板孔板温度较为均匀 。 Numerical simulation was conducted to investigate flow heat transfer characteristics for three types of laminated plates with multirow holes. The results have shown that a stable film is formed on the plate surface. The more uniform and effective cooling is achieved for the plate A compared with other plates.
作者 陶涛 吴海玲 彭晓峰 张志学
机构地区 清华大学 沈阳发动机设计研究所
出处 《航空发动机》 2004年第3期26-30,共5页 Aeroengine
关键词 多斜孔层板 发散冷却 数值模拟 流动换热 小孔射流 燃气轮机 航空发动 laminated plate transpiration cooling numerical simulation
分类号 V235.1 [航空宇航科学与技术—航空宇航推进理论与工程] V231.1 [航空宇航科学与技术—航空宇航推进理论与工程]
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参考文献8

  • 1Papanicolalou E, Giebert D, Koch R, et al. A conservation -based discretization approach for conjugate heat transfer calculations in hot - gas ducting turbomachinery components. International Journal. Heat and Mass Transfer,2001, 44: 3413～3429.
  • 2Cho H H, Goldstein R J. Heat (mass) transfer and film cooling effectiveness with injection through discrete holes.Part Ⅰ: Within holes and on the back surface. & Part Ⅱ:On the exposed surface. American Society of Mechanical Engineers, 1993, Nov 28-
  • 3Honami S, Shizawa T, Uchiyama A. Behaviors of the laterally injected jet in film cooling: Measurements of surface temperature and velocity/temperature field within the jet.92 - GT- 180.
  • 4Gritsch M, Schulz A, Wittig S. Film- cooling holes with expanded exits: near- hole heat transfer coefficients. International Journal of Heat and Fluid Flow, 2000, 21: 146-155.
  • 5Goldstein R J, Eckert E R G, Burggraf F. Effects of hole geometry and density on three - dimensional film cooling.International Journal of Heat and Mass Transfer, 1974,17: 595-607.
  • 6Lakehal D, Theodoridis G S, Rodi W. Computation of film cooling of a flat plate by lateral injection from a row of holes. International Journal of Heat and Fluid Flow, 1998,19: 418-430.
  • 7Lee J S. Jung I S. Effect of bulk flow pulsations on film cooling with compound angle holes. International Journal of Heat and Mass Transfer, 2002, 45: 113-123.
  • 8Garg Vijay K. Comparison of predicted and experimental Nusselt number for a film - cooled rotating turbine blade.International Journal of Heat and Fluid Flow. 1997, 18:452-460.
航空发动机
2004年 第3期

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