发动机进气系统水分离计算研究

Study and Calculation of Water Separation in Engine Intake System

自然降雨的雨滴粒径分布可通过Rosin-Rammler方程进行简化,由此可计算不同工况下发动机进气口的雨滴粒径范围。利用DPM-EWF耦合模型,可以较好的模拟进气道内的水滴颗粒轨迹和液膜分布,并由此提出提高进气道水分离效率的思路。

The raindrop size distribution of natural rainfall can be simplified by the rosin Rammler equation,so the raindrop size range of engine intake sysytem under different working conditions can be calculated.Using DPM-EWF coupling model,the trajectory of water droplets and the distribution of liquid film in the intake system can be well simulated,and the idea of improving the efficiency of water separation in the intake system can put forward.