为了研究和改善1+1/2对转涡轮性能,本文对1+1/2对转涡轮两种转速下不同落压比共16种工况进行了数值研究,并与实验结果进行了对照.结果表明近设计工况下计算结果和实验值吻合较好.1+1/2对转涡轮出口背压对高压转子性能影响较小,对低压转子性能影响较大,这导致变工况下1+1/2对转涡轮高低压轴出功比变化较大.通过对某典型非设计工况和设计工况下的流场结构的分析发现非设计工况下1+1/2对转涡轮高压动叶中发生了明显的流动分离.高低压动叶不能很好地匹配,需要采取合理的流动控制措施去改善已有1+1/2对转涡轮的变工况性能.
参考文献
| [1] | Louis J F .Axial Flow Counter-Rotating Turbine.[ASME paper 85-GT-218][R].,1985. |
| [2] | Ponomariov B A .Using Contra-Rotating Rotors for Decreasing Sizes and Component Number in Small GTE.[ASME paper 92-GT-414,][R].,1992. |
| [3] | Sotsenko Y V .Thermogasdynamic Effects of the Engine Turbines with the Contra-rotating Rotors.[ASME paper 90-GT-63][R].,1990. |
| [4] | Huber F W et al.Design and Test of a Small Two Stage Counter-Rotating Turbine for Rocket Engine Application.[AIAA 93-2136][R].,1993. |
| [5] | Wang Huishe;Zhao Xiaolu;Xu Jianzhong .Numerical Investigation on Performance of Vaneless Counter-Rotating Turbine.[ISABE-2005-1159,][R].,2005. |
| [6] | Wang Huishe;Zhao Qingjun et al.Numerical Simulation of Shock Systems of Low Pressure Turbine in Vaneless Counter-Rotating Turbine.[ASME GT-2006-90397][R].,2006. |
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