基于多孔介质模型的空气滤清器阻力特性  

Resistance Property of Air Filter Based on Porous Media Models

作　　者：卢进军[1] 孙阳[1] 李继新[1] 乔梦华[1] 李文超[1] LU Jinjun, SUN Yang, LI Jixin, QIAO Menghua, LI Wenchao(China North Vehicle Research Institute, Beijing 100072, Chin)

机构地区：[1]中国北方车辆研究所,北京100072

出　　处：《系统仿真技术》2018年第1期52-57,共6页System Simulation Technology

摘　　要：对某车辆发动机装配的空气滤清器进行2种多孔介质模型的仿真分析。利用Geo Dict材料分析软件生成接近真实结构的三维滤材模型,得到滤材性能数据。将滤材性能数据代入多孔介质模型进行空气滤清器数值模拟,得到空气滤清器的阻力特性曲线。台架试验结果与2种模型的仿真结果对比分析表明,幂函数多孔介质模型的计算结果更接近试验值。The simulation analysis on air filter for an automotive engine was conducted by using two porous media models.A three-dimensional model close to actual structure was created by GeoDict software.Then,the simulation data of filter material were acquired.Finally,the resistance property of the air filter was obtained with the substitution of the simulation data into the porous media model.Comparative analysis shows that the calculation results of exponential-function porous media model are closer to the test results.

关 键 词：空气滤清器 计算流体动力学(CFD) 多孔介质 过滤材料 GEO Dict软件 

分 类 号：TJ811[兵器科学与技术—武器系统与运用工程]