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首页> 外文学位 >The development of wave rotor simulation and row-by-row cooled turbine simulation modules for the dynamic engine simulation code GETRAN.
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The development of wave rotor simulation and row-by-row cooled turbine simulation modules for the dynamic engine simulation code GETRAN.

机译：为动态发动机仿真代码GETRAN开发波浪转子仿真和逐行冷却涡轮仿真模块。

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摘要

The dynamic engine simulation code, GETRAN, was modified and improved by the addition of two component subroutine modules. The first module included was a one-dimensional wave rotor simulation code, WR1D. The wave rotor is a gasdynamic rotary device that functions as series of shock tubes designed to function in a flow loop with the engine's combustor. The device provides an increase in the total pressure to the turbine component and thereby increases total power production of the overall engine. After equilibrium conditions were achieved for a helicopter turboshaft engine, two transient simulations were conducted to test the interaction of the wave rotor with surrounding turbomachinery. The simulations conducted were a deceleration and acceleration of the combustor to test surge performance, and a simulated pressure disruption due to high angle of attack maneuvers. The wave rotor resisted the tendency to surge in acceleration and was quick to respond to inlet pressure fluctuations. The second module was an original row-by-row solution method for the turbine flow conditions that included, as a user option, the ability to cool turbine blades. The heat transfer and blade cooling methodology was tested by simulations of the above helicopter engine without the wave rotor, and for a GT-9 power generation gas turbine. Calculated results from the two simulations for a variety of blade cooling and non-cooled blade options conformed to expected results. No experimental data was available for either code modifications validation.
机译：动态引擎仿真代码GETRAN通过添加两个组件子例程模块进行了修改和改进。包含的第一个模块是一维波转子仿真代码WR1D。波浪转子是一种气动旋转装置，可作为一系列减震管使用，这些减震管旨在与发动机的燃烧器在流动环路中发挥作用。该装置增加了涡轮部件的总压力，从而增加了整个发动机的总功率。在直升飞机涡轮轴发动机达到平衡条件后，进行了两个瞬态模拟，以测试波轮与周围涡轮机械的相互作用。进行的模拟是燃烧器的减速和加速以测试喘振性能，以及由于高攻角演习而导致的模拟压力破坏。波动转子抵抗了加速度激增的趋势，并且能够快速响应入口压力波动。第二个模块是用于涡轮机流动条件的原始逐行解决方案方法，其中包括作为用户选项的冷却涡轮机叶片的能力。传热和叶片冷却方法论是通过对上述不带波动转子的直升飞机发动机以及GT-9发电燃气轮机进行仿真测试的。两次模拟得出的各种叶片冷却和非冷却叶片选件的计算结果均符合预期结果。没有实验数据可用于任何代码修改验证。

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  • 作者

    Greendyke, Robert Brian.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Engineering Mechanical.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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