处于部分进汽时动叶片排内非定常流动现象的数值研究

工程热物理学报 , 2001, 22(1): 36-39.

处于部分进汽时动叶片排内非定常流动现象的数值研究

徐星仲 ^1, , 徐力平 ^2, , 蔡虎 ^3, , 蒋洪德 ^4,

1.北京全三维动力工程有限公司,

2.北京航空航天大学404教研室,

3.北京全三维动力工程有限公司,

4.中国科学院工程热物理研究所，

基金项目: 国家攀登计划(85-39-12) 国家自然科学基金(59676008)

关键词：部分进汽 , 非定常流动 , 数值研究

NUMERICAL INVESTIGATION INTO CASCADE FLOW UNDER PARTIAL ADMISSION

本文在简要回顾了迄今为止对于工作在部分进汽状态下叶片特性的实验和理论研究结果之后，采用作者发展的多通道三维叶片非定常计算程序，对处于部分进汽时动叶片排内的三维流动进行了数值模拟，并对计算结果进行了分析。

Experimental and theoretical results of flow characteristic incascade under partial admission are briefly summarized in this paper firstly.Then, real flow under this situation is numerically simulated by usingmulti-passage 3D unsteady viscous code developed by authors. The obtainedflow field is analyzed and several sophisticated phenomena arepresented in the last.

参考文献

[1]	Pigott R.Turbine Blade Vibration Due to Partial Admission[J].International Journal of Mechanical Sciences,1980:22.
[2]	Lewis K L .The Influence of Partial Admission on thePerformance of a Multistage Turbine[R].Whittle LaboratoryInternal Report, UK. University of Cambridg,1994.
[3]	Wakeley G R;Ian Potts .Origins of Loss Within a Mul-tistageTurbine Environment under Conditions of PartialAdmission[R].ASME 97-GT-96
[4]	He L.Computation of Unsteady Flow Through Steam Turbine BladeRows at Partial Admission[J].IMechE Journal of Power and Energy,1997:211.
[5]	徐星仲 .处于部分进汽时动叶片排流动的三维非定常数值模拟[R].北京航空航天大学博士后出站报告,1998.

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