| 跨音压气机确定应力场分析 |
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| 引用本文： | 柳阳威,刘宝杰.跨音压气机确定应力场分析[J].航空学报,2007,28(Z1). |
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| 作者姓名： | 柳阳威 刘宝杰 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,航空发动机气动热力重点实验室,北京,100083 |
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| 摘 要： | 采用全三维黏性定常、非定常数值模拟技术,对NASA 67第1级的固有非定常流动进行了研究.首先分析了定常流场和非定常时均流场间的差别以及压气机中典型的转、静干涉现象,然后对通道内确定应力的分布规律和转、静交界面确定应力各项的分布特点进行了较为深入的研究,揭示了现有确定应力模型的一些局限性,可为确定应力建模提供一定的指导作用.
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| 关 键 词： | 航空、航天推进系统 压气机 确定应力 转、静干涉 非定常计算 跨音压气机 应力场 分析 Compressor Stresses 作用 指导 力建模 应力模型 分布特点 交界面 分布规律 确定应力 通道 现象 干涉 差别 时均流场 定常流场 研究 |
Analysis of Deterministic Stresses in a Transonic Compressor |
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| LIU Yang-wei,LIU Bao-jie.Analysis of Deterministic Stresses in a Transonic Compressor[J].Acta Aeronautica et Astronautica Sinica,2007,28(Z1). |
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| Authors: | LIU Yang-wei LIU Bao-jie |
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| Abstract: | Steady and unsteady simulations are conducted on the investigation of the deterministic unsteady phenomenon in the first stage of NASA 67. Firstly results from steady and unsteady simulations are compared and typical rotor/stator interactions are analyzed. Then the distributions of deterministic stresses in the blade passage and the components of deterministic stresses based on velocity decomposition at the rotor/stator interface are studied. The discussions can reveal some shortcomings of the present deterministic stresses models and make some contributions to the modeling development. |
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| Keywords: | aerospace propulsion system compressor deterministic stress rotor/stator interaction unsteady simulation |
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