Inlet cooling and wet compression is effective ways to increase the power output of gas turbine. It should be attached importance to the influence of water droplet on compressor blades. This paper applies the erosion model of Fluent to study the erosion problem caused by water droplet. Numerical simulation is taken on the channels of six stage compressor. The calculation results show that the erosions happen on the suctions of the rotor blades mainly, and they are visible on front of the suctions. The most erosion is behind on front of the suctions. It is a little erosion that on the latter stages. This paper studies the implication on the erosion by different factor, such as water mass flow, diameter of water droplet and inlet air temperature also. Meanwhile,some countermeasures of control erosion method were given.%进气冷却和湿压缩是增加燃气轮机功率简单且有效的方法,雾化液滴对压气机叶片的磨蚀影响不容忽视.本文采用Fluent流体计算软件的磨蚀模型研究叶片的雾滴磨蚀问题,对六级压气机流道进行二维数值模拟,结果表明磨蚀主要发生在前三级,在动叶吸力面上比较明显,第一级动叶靠近前缘吸力面处磨蚀量最大,后几级磨蚀量很少.同时分析了喷水量、雾滴尺寸和进口空气温度不同因素对叶片磨蚀的影响,并提出控制磨蚀的对策.
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