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子弹药引信涡轮发电机工作域流场特性分析

Keywords: 子弹药,弹道环境,引信涡轮发电机,流场特性

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Abstract:

针对由于子弹特殊的几何外形引起的引信涡轮发电机工作域流场的复杂性和特殊性,本文在考虑涡轮发电机的整体布局和子弹药弹道环境的基础上,采用S-A湍流模型的雷诺平均N-S方程作为控制方程,利用有限体积法离散,借助CFD软件建立了数值仿真模型.通过仿真研究了子弹药典型弹道环境下涡轮发电机工作域的流场特性,得出了流场压强、流速的分布及其与子弹药弹道特性之间的关系,进而获得了涡轮机设计的输入条件及叶轮安装位置的选择准则.

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