汽车雨水管理的数值仿真与评价

汽车在雨天行驶时,落到侧窗表面的雨水会影响驾驶员的侧向视野和后视野,从而危及行车安全,故侧窗雨水管理对于整车安全非常重要。但迄今为止对于侧窗雨水管理问题尚未有一个统一而有效的评价方法。为此,本文中应用液膜模型和拉格朗日粒子模型对某款SUV进行了雨水仿真,基于人机工程学和粒子束轨迹技术提出了侧窗雨水管理的评价方法,并对仿真结果进行了相应的分析。

Numerical Simulation and Evaluation of Vehicle Rainwater Management

When vehicle is running on rainy days,the raindrop falling on the front side window will affect the side views and rear views of driver,causing an adverse effect on driving safety,thus the rainwater management of the front side-window is of great importance for vehicle safety.However,so far there is no unified and effective evaluation method for this issue.In view of this,the fluid film model and the Lagrangian particle model are applied to a rainwater simulation on a SUV in this paper,and an evaluation method for the rainwater management of side window based on ergonomics and particle beam trajectory technology is proposed with a corresponding analysis performed on simulation results.