| 部分充液罐车动力学特性的数值模拟与分析 |
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| 引用本文： | 刘小民,许运宾.部分充液罐车动力学特性的数值模拟与分析[J].西安交通大学学报,2011,45(6):116-123. |
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| 作者姓名： | 刘小民 许运宾 |
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| 作者单位： | 西安交通大学能源与动力工程学院,710049,西安 |
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| 摘 要： | 为了保障罐车的运输安全,针对罐车罐体内液体的动力学特性进行了研究.基于欧拉-欧拉多相流模型对罐车在公路制动和转弯过程中罐体内液体的晃动过程进行了数值模拟,通过改进罐车转弯时横向离心力的施加方式,建立了一种更为准确的罐车运动物理模型,同时分析了充液比、刹车速度和转弯半径对罐车罐体运动状态的影响,并提出了一种数值计算方法.模拟结果表明:罐车制动时在行进方向上的受力随充液比的增加非线性增大,随减速度的增大线性增大;罐车转弯时所受的横向稳定转矩随充液比的增加线性增大,随转弯半径的变化非线性变化.所提方法可以计算获得罐车转弯过程中的最小临界转弯半径,这对于保证罐车的安全运行,尤其是装有化学试剂的罐车具有重要的参考价值.
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| 关 键 词： | 液体晃动 欧拉-欧拉多相流模型 公路运输 数值模拟 |
Numerical Simulation for Dynamic Analysis of a Moving Truck with Partially Filled Liquid Tank |
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| LIU Xiaomin,XU Yunbin.Numerical Simulation for Dynamic Analysis of a Moving Truck with Partially Filled Liquid Tank[J].Journal of Xi'an Jiaotong University,2011,45(6):116-123. |
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| Authors: | LIU Xiaomin XU Yunbin |
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| Affiliation: | (School of Energy and Power Engineering,Xi′an Jiaotong University,Xi′an 710049,China) |
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| Abstract: | Liquid sloshing in moving tank was simulated numerically with an Eulerian-Eulerian multiphase model for the tank truck of braking and turning.Improving the imposed method of the transverse centrifugal force to the tank truck,the effects of different filling ratio,braking speed,and turning radius on the liquid sloshing behavior were described more accurately,and a corresponding calculating method for the critical turning radius of the moving truck was proposed.The numerical results show that during braking o... |
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| Keywords: | liquid sloshing Eulerian-Eulerian multiphase model highway transport numerical simulation |
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