| 运用现代CFD方法设计高效率的汽轮机 |
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| 作者姓名： | T.Thiemann A.deLazzer M.Deckers |
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| 作者单位： | SteamTurbineEngineering,SiemensAGPowerGeneration,Mulheim,Germany |
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| 摘 要： | 论述了运用现代计算流体动力学(ComputationalFluidDynamics,CFD)技术设计高效率汽轮机的方法,典型应用的实例有全三维叶片级流场、叶片汽封和排汽蜗壳计算。计算结果和实际是相符的。进一步对结构性单元和非结构单元程序的计算结果进行了比较,已证明,非结构单元CFD程序用于复杂形状的流场计算时,结果与实际相当一致,并具有独特的功能。
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| 关 键 词： | 汽轮机设计 叶片通流部分设计 迷宫式密封 排汽缸 计算流体动力学 |
Application of Advanced CFD-Methods to the Design of Highly Efficient Steam Turbines |
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| T.Thiemann A.deLazzer M.Deckers.Application of Advanced CFD-Methods to the Design of Highly Efficient Steam Turbines[J].Thermal Turbine,2003,32(2):86-94. |
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| Authors: | TThiemann Ade Lazzer MDeckers |
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| Abstract: | The present paper involves the application of a mo dern computational fluid dynamics (CFD) method in the design process of highly e fficient steam turbines. The method is applied to typical steam turbine design cases, namely the calculation of the fully three-dimensional flow through steam turbine stages, blade seals and turbine exhaust hoods. Remarkably good agreement was achieved. Furthermore, the results of structured and unstructured codes were compared against each other. Excellent agreement was found and the unique abilities of an unstructured CFD code to model complex geo metries are demonstrated. |
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| Keywords: | steam turbine design blade-path design labyrint h seal exhaust hood CFD |
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