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Integral design optimization for low pressure last stage steam turbine.

机译:低压末级汽轮机的整体设计优化。

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摘要

The stage performance improvement has been achieved by using advanced blading techniques including lean stator, airfoil curvature minimization, and exhaust hood geometry optimization. Stage CFD and exhaust hood CFD models have been accurately modeled in a two-phase environment and the equally important interactions existing among stator, rotor, and exhaust hood flow paths have been accounted. The effects of the flow properties at the stage exit plane was investigated through a exhaust hood CFD parametric study. The loss curves has been created by scaling the flow properties uniformly and calculating the hood loss associated with various values of flow rated averaged quantity at the hood inlet plane.
机译:通过使用先进的叶片技术,包括精益定子,最小化机翼曲率和优化排气罩几何形状,可以实现舞台性能的提高。在两相环境中已精确建模了阶段CFD和排气罩CFD模型,并且已考虑到定子,转子和排气罩流路之间存在的同等重要的相互作用。通过排气罩CFD参数研究研究了在出口平面上流动特性的影响。通过均匀地缩放流量特性并计算与引擎盖入口平面上各种额定流量平均值相关的引擎盖损耗,可以创建损耗曲线。

著录项

  • 作者

    Wang, Kunding.;

  • 作者单位

    The University of Wisconsin - Milwaukee.;

  • 授予单位 The University of Wisconsin - Milwaukee.;
  • 学科 Engineering Mechanical.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 116 p.
  • 总页数 116
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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