中文摘要：

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．

英文摘要：

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.