机动车加油管注油过程的Workbench Fluent仿真  

An Oil Injection Process for Motor Vehicle Refueling Based on Workbench Fluent Simulation

作　　者：程秀 莫健华[1] 明志新[2] 刘祖强[2] 

机构地区：[1]华中科技大学材料科学与工程学院,湖北武汉432700 [2]湖北水利水电职业技术学院机电工程系,湖北武汉432700

出　　处：《五邑大学学报（自然科学版）》2017年第4期32-39,共8页Journal of Wuyi University(Natural Science Edition)

摘　　要：随着环保要求的日益严格,机动车加油过程所产生的油气排放污染控制越来越严格.针对此问题,选择一体化软件Workbench对简化后的油管模型进行网格划分,再使用VOF多相流模型和RNG k-?模型对油管的注油过程进行模拟计算.设置好边界条件以及求解条件,建立仿真模型,对不同内径加油管在不同加油速度下的注油过程进行两相流模拟计算,讨论其对液封形成的影响.结果表明,加油速度越大,加油管径越小,自液封越容易形成,但是速度大、管径小容易导致反喷.With the increasingly stringent environmental requirements,control of pollution from exhaust of oil and gas in motor vehicle fueling process is increasingly stringent.To solve this problem,the integrated software Workbench is selected to generate grid mesh for the simplified tubing model and the VOF model and RNG k-？ model is applied to simulate and calculate the fuel injection process of oil pipes.The boundary conditions and solution conditions are set and a simulation model is established to simulate and calculate the two-phase flow of the fuel injection process of oil pipes of different sizes at different rates,and its effect on liquid seal is discussed.The results show the greater the fueling rate and the smaller the fuel pipe diameter,the easier it is to form the liquid seal.But the greater rate of fueling and smaller diameter of the tube can easily lead to back spray.

关 键 词：加油排放 计算流体力学 数值模拟 油管液封 

分 类 号：U473.9[机械工程—车辆工程]