| 粒子分离器叶片涂层冲蚀磨损的数值模拟 |
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| 引用本文： | 邓瑛,闫晓军,聂景旭.粒子分离器叶片涂层冲蚀磨损的数值模拟[J].航空动力学报,2007,22(12):2089-2093. |
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| 作者姓名： | 邓瑛 闫晓军 聂景旭 |
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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,北京,100083 |
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| 基金项目： | 国家自然科学基金
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航空基础科学基金
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教育部全国优秀博士学位论文作者专项基金 |
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| 摘 要： | 以叶片涂层为对象,研究其冲蚀过程中损伤的演化过程.首先进行了流场计算.其次通过对单个固体颗粒冲蚀过程的模拟,提出了"碰撞有效影响区域"的概念,使得多个固体颗粒连续冲蚀数值模拟得以实现.接下来通过模拟"碰撞有效影响区域"内材料受到固体颗粒连续冲蚀的过程获得材料的抗冲蚀磨损性能.最后,将流场数据和涂层抗冲蚀磨损性能参数相结合来模拟叶片涂层的冲蚀过程,指出了涂层的薄弱区域并进行了寿命预测.
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| 关 键 词： | 航空、航天推进系统 粒子分离器 冲蚀 磨损 叶片 涂层 光滑粒子流体动力学方法 寿命预测 |
| 文章编号： | 1000-8055(2007)12-2089-05 |
| 收稿时间： | 2006/11/15 0:00:00 |
| 修稿时间： | 2006年11月15 |
Numerical simulation of erosion and abrasion of separator blade coating |
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| DENG Ying,YAN Xiao-jun and NIE Jing-xu.Numerical simulation of erosion and abrasion of separator blade coating[J].Journal of Aerospace Power,2007,22(12):2089-2093. |
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| Authors: | DENG Ying YAN Xiao-jun and NIE Jing-xu |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The damage evolution of blade coating in the erosion process was studied.Firstly,the flow field was measured;secondly,the erosion process of single solid particles was simulated to propose the concept "Effective erosion region",allowing to simulate numerically the erosion process of multiple solid particles.Next,the erosion resistance performance of coating materials in the "Effective erosion region" was simulated.The results show the weak coating region and provide life prediction by simulating the erosion process of blade coating with the flow field data and erosion resistance performance parameters. |
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| Keywords: | aerospace propulsion system separator erosion abrasion blade coating smoothed particle hydrodyncrmics(SPH) method life prediction |
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