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Computational investigation of the effects of casing treatments on the performance of a turbofan.

机译:机匣处理对涡轮风扇性能影响的计算研究。

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摘要

A computational survey focused on modifications to the casing near the rotor blade tip is carried out for the purpose of enhancing the performance and increasing the stall margin of a model turbofan stage in transonic operating conditions. The study is divided into three phases. During the first phase two types of casing treatments, inward protruding rings and circumferential grooves, were tested with relatively coarse grids. In the second phase, a grid resolution study is carried out with the results from this phase influencing the choices for the third stage. In the third phase, a comprehensive study is performed to examine the near-stall effects and stall-related behavior of the baseline case and a series of circumferential groove configurations.
机译:为了提高性能并增加跨音速工况下的模型涡扇级的失速裕度,进行了一项旨在改进转子叶片尖端附近壳体的计算调查。该研究分为三个阶段。在第一阶段,用相对较粗的网格测试了两种套管处理方法,即向内突出的环和圆周槽。在第二阶段,将进行网格分辨率研究,该阶段的结果会影响第三阶段的选择。在第三阶段,进行了全面的研究,以检查基线情况以及一系列周向凹槽配置的近失速效应和失速相关行为。

著录项

  • 作者

    Lin, Weiyang.;

  • 作者单位

    The University of Tennessee at Chattanooga.;

  • 授予单位 The University of Tennessee at Chattanooga.;
  • 学科 Engineering Aerospace.;Engineering Mechanical.
  • 学位 M.S.E.
  • 年度 2013
  • 页码 135 p.
  • 总页数 135
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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