摘要
利用有限体积法研究液体晃动行为,对二维和三维矩形储液容器液体晃动进行分析,得到液体晃动平均动能时间曲线、瞬时压力图和瞬时速度矢量图等。二维矩形容器的结果与线性解析解具有很好的一致性,将方法扩展到三维矩形容器的情形,得到液体晃动平均动能时间曲线、瞬时压力图和瞬时速度矢量图,并模拟出液体晃动的行波和驻波现象。有限元体积法能分析压力分布图和平均动能曲线,压力分布图能评估结构安全性和稳定性,平均动能曲线可以评估液体晃动噪声水平,对结构设计有重要的指导作用。
Liquid sloshing are analyzed using the volume of lfuid method. The liquid sloshing in a two dimensional tank and a three dimensional tank are ana-lyzed. Mean kinetic energy and time curve, instantaneous pressure figure, velocity magnitude and vectors figure of the liquid sloshing. The results of a two dimensional tank are found to be in good agreement with the linear analyti-cal solutions, which verifies the volume of fluid method. And work out the result of a three dimensional tank. Mean kinetic energy and time curve, instantaneous pressure ifg-ure, velocity magnitude and vectors figure of the liquid sloshing are obtained, and traveling wave and standing wave of liquid sloshing are simulated. Pressure distribu-tion figure and mean kinetic curve are obtained by the volume of lfuid method. The structural safety and stability is estimated by pressure distribution ifgure. The noise level of liquid sloshing can be estimated by mean kinetic energy curve, which is vital to structure design.
出处
《航空制造技术》
北大核心
2013年第19期75-79,共5页
Aeronautical Manufacturing Technology
关键词
有限体积法
液体晃动
平均动能
压力分布
Volume of fluid method
Sloshing waves
Mean kinetic energy
Pressure distribution
