| 射流角度对车辆风窗玻璃除霜性能的影响 |
| |
| 引用本文： | 王永珍,高青,王国华,马纯强,马宁. 射流角度对车辆风窗玻璃除霜性能的影响[J]. 吉林大学学报(工学版), 2009, 0(Z2) |
| |
| 作者姓名： | 王永珍 高青 王国华 马纯强 马宁 |
| |
| 作者单位： | 吉林大学汽车工程学院; |
| |
| 基金项目： | “863”国家高技术研究发展计划项目(2006AA11A125) |
| |
| 摘 要： | 利用Fluent计算软件,采用标准kε-紊流模型,通过模拟冲击射流除霜时风窗玻璃外表面上霜层的二维固、液融化现象,研究了射流角度(碰撞角和平面角)对车辆风窗玻璃除霜效果的影响。文章重点阐述了射流角度对流动状态、玻璃表面温度、平均液相率、液态分数等参数的影响。结果表明,射流碰撞角和平面角对除霜效果的影响是非单调性的,存在最有利的作用参数区间;在约定条件下存在最佳效果的碰撞角(60°)和平面角(10°)。
|
| 关 键 词： | 车辆工程 风窗玻璃 除霜 冲击射流 |
Effect of impinging jet angles on vehicle windshield defrosting performance |
| |
| WANG Yong-zhen,GAO Qing,WANG Guo-hua,MA Chun-qiang,MA Ning. Effect of impinging jet angles on vehicle windshield defrosting performance[J]. Journal of Jilin University:Eng and Technol Ed, 2009, 0(Z2) |
| |
| Authors: | WANG Yong-zhen GAO Qing WANG Guo-hua MA Chun-qiang MA Ning |
| |
| Affiliation: | College of Automobile Engineering;Jilin University;Changchun 130022;China |
| |
| Abstract: | Two-dimensional solid-liquid melting phenomenon of frost on outer windshield surface with air impinging was simulated based on standard k-ε turbulence model by Fluent.The efficiency of windshield defrosting is affected by jet angle and sweep angle which determine the fluid flow patterns,average external temperature of windshield,liquid fraction and average liquid-phase rate.The results indicate that the effect of jet angle and sweep angle on defrosting is non-monotonous,and there is optimal scope of jet angle and sweep angle.The optimal jet angle is 60°and sweep angle is 10°under promissory conditions. |
| |
| Keywords: | vehicle engineering windshield defrost impinging jet |
| 本文献已被 CNKI 等数据库收录！ |
|
