为了探究无导叶对转涡轮进口热斑径向作用位置的变化对其高压级温度场的影响,运用CFD方法对某无导叶对转涡轮模型级的流场进行了三维非定常多叶片排的数值模拟.结果表明,热斑流体在高压导叶中未发生周向和展向迁移;进口热斑径向作用位置的差异直接影响到热斑流体通过涡轮叶片时的温度耗散度;进口热斑径向作用位置的变化对高压动叶中控制热斑迁移的冷热气流掺混效应、通道二次流和浮力三种因素的作用效果产生了一定程度的影响.
参考文献
| [1] | Povey T;Chana K S;Jones T V et al.The Effect of Hot-Streaks on HP Vane Surface and Eudwall Heat Transfer:An Experimental and Numerical Study[ASME Paper2005-GT-69066][R].,2005. |
| [2] | Butler T L;Sharma O P;Joslyn H D et al.Redistribution of an Inlet Temperature Distortion in an Axial Flow Turbine Stage[J].AIAA Journal of Propulsion and Power,1989,5(01):64-71. |
| [3] | Stabe R G;Whitney W J;Moffitt T P .Performance of a High-Work Low-Aspect Ratio Turbine Tested with a Realistic Inlet Radial Temperature Profile[AIAA Paper 84-1161][R].,1984. |
| [4] | Munk M;Prim R C .On the Multiplicity of Steady Gas Flows Having the Same Streamline Pattern[J].Proceedings of the National Academy of Sciences(USA),1947,33:137-141. |
| [5] | Takahashi R K;Ni R H .Unsteady Hot Streak Simulation through a 1-1/2 Stage Turbine[AIAA Paper 91-3382][R].,1991. |
| [6] | Shang T;Epstein A H .Analysis of Hot Streak Effects on Turbine Rotor Heat Load[J].Journal of Turbomachinery,Transactions of the ASME,1997,119(03):544-553. |
| [7] | Aksoy H;Liu J S;Couey P et al.Three-Dimensional Analysis of Hot Streak Attenuation in a High Pressure Turbine Stage[AIAA Paper 2002-3646][R].,2002. |
| [8] | He L;Menshikova V;Hailer B R .Influence of Hot Streak Circumferential Length-Scale in Transonic Turbine Stage[ASME Paper 2004-GT-53370][R].,2004. |
| [9] | Lakshminarayana B;Horlock J H .Generalized Expressions for Secondary Vorticity Using Intrinsic Co-Ordinates[J].Journal of Fluid Mechanics,1973,59(01):97-115. |
| [10] | Sharma O P;Stetson G M;Daniels W A et al.Impact of Periodic Unsteadiness on Performance and Heat Load in Axial Flow Turbomachincs[NASA CR 202319][R].,1997. |
| [11] | Jenkins S C;Bogard D G .The Effects of the Vane and Mainstream Turbulence Level on Hot Streak Attenuation[ASME Paper 2004-GT-54022][R].,2004. |
| [12] | Zilli A;Pachidis V;Jackson A et al.CFD Investigation of the Performance of a Military HP Axial Turbine Subjected to Inlet Temperature Distortion[ASME Paper 2005-GT-68503][R].,2005. |
| [13] | 董素艳,刘松龄,朱惠人.涡轮级进口温度分布不均匀时流场和温度场的非定常数值模拟[J].西北工业大学学报,2001(03):345-348. |
| [14] | 季路成,杨吉民,徐建中.关于1+1对转涡轮中热痕现象的研究[J].工程热物理学报,2001(06):683-686. |
| [15] | 赵庆军,王会社,赵晓路,徐建中.无导叶对转涡轮进口热斑迁移特性分析[J].工程热物理学报,2007(01):40-42. |
| [16] | Zhao Q J;Wang H S;Zhao X L.Numerical Investigation on the Influence of Hot Streak Temperature Ratio in a High-Pressure Stage of Vaneless Counter-Rotating Turbine[J].International Journal of Rotating Machinery,2007 |
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