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| 高速列车湍流特性的数值模拟 | |
| 引用本文： | 张军海,王吉桥,吴向东,扶原放.高速列车湍流特性的数值模拟[J].铁道机车车辆,2010,30(1):11-15. |
| 作者姓名： | 张军海 王吉桥 吴向东 扶原放 |
| 作者单位： | 1. 西南交通大学,机械工程学院,四川,成都,610031 2. 山东威海市地方铁路管理局,山东,威海,264200 3. 吉林大学,汽车工程学院,吉林,长春,130025 |
| 摘 要： | 为了研究不同的湍流模型对数值模拟结果精度和数值准确度的影响,采用了PRO-E和ICEMCFD进行模型的建立和网格的生成,使用FLUENT软件对高速列车外流场进行分析,在其他条件不变的情况下,湍流模型选用双方程k-ε模型和标准k-ω模型,通过对流场的受力和速度分布图的分析对比,可以看出RNGk-ε得出的数值结果与真实情况最接近,更加符合列车外流场气动的特性。 |
| 关 键 词： | 湍流模型 外流场 数值模拟 高速列车 |
Numerical Simulation on Characteristics of Turbulence Flow Around a High-speed Train |
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| ZHANG Jun-hai,WANG Ji-qiao,WU Xiang-dong,FU Yuan-fang.Numerical Simulation on Characteristics of Turbulence Flow Around a High-speed Train[J].Railway Locomotive & Car,2010,30(1):11-15. | |
| Authors: | ZHANG Jun-hai WANG Ji-qiao WU Xiang-dong FU Yuan-fang |
| Institution: | ZHANG Jun-hai1,WANG Ji-qiao2,WU Xiang-dong1,FU Yuan-fang3(1 College of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031 Sichuan,China,2 Local Railway Administration Bureau of Shangdong Weihai,Weihai 264200 Sh,ong,3 College of Automobile Engineering,Jilin University,Changchun 130025 Jilin,China) |
| Abstract: | To study the impact of the numerical simulation result precision and value accuracy under different turbulence models, this paper establishs the model by PRO-E, generates the grid by ICEM CFD, analgzes the flow field of high-speed train by FLUENT, and selects the two equation k-ε model and standard k-ω model for the turbance model. Through the analysis and comparision of the force and speed map of the flow field, it can be seen that the simulation results with RNG k-ε are mostly close to the real situation, and mostly meet the characteristics of turbulace flow around the high-speed train. |
| Keywords: | turbulence model external flow field numerical simulation high-speed train |
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