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Scale Effect on Gaseous Flow around a Micro-Scaled Gas Turbine Blade

机译:尺度效应对微型燃气轮机叶片周围气体流动的影响

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摘要

Two-dimensional compressible momentum and energy equations are solved on gaseous flows around a micro-scaled gas turbine blade (GE-E~3) for which the axial chord length ranges from 86.1 μm to 86.1 mm to obtain the scale effect. The numerical methodology is based on Arbitrary-Lagrangian-Eulerian (ALE) method. The flow is assumed to be "no heat conduction" flow. The computations were performed for gaseous flow around a single blade with periodical conditions imposed along the boundaries in the pitch directions. The study is focused on the effect of the scale of the turbine blade on the performance. The predicted pressure distribution on both the pressure and suction sides of the conventional sized blade and both the inlet and outlet Mach numbers were compared with available experimental data to verify the code, and the scale effect was discussed.
机译:对绕轴长在86.1μm至86.1 mm范围内的微型燃气轮机叶片(GE-E〜3)周围的气态流动求解二维可压缩动量和能量方程,以获得缩放效果。数值方法基于任意拉格朗日欧拉(ALE)方法。假定该流动为“无热传导”流动。沿着桨距方向上的边界施加周期性条件的情况下,对围绕单个叶片的气流进行了计算。该研究集中在涡轮叶片的尺寸对性能的影响上。将常规尺寸叶片的压力侧和吸力侧的预测压力分布以及入口和出口马赫数与可用的实验数据进行比较,以验证代码,并讨论了水垢效应。

著录项

  • 来源
    《Heat Transfer Engineering》 |2007年第9期|p.696-703|共8页
  • 作者

    TORU YAMADA; YUTAKA ASAKO;

  • 作者单位

    Department of Mechanical Engineering, Tokyo Metropolitan University, Tokyo, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工业用热工设备;
  • 关键词

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