论文摘要
An investigation on the oscillating characteristic of temperature and transverse velocity in a half-floating zone liquid bridge for the mixture solution of toluene/n-hexane with the ratio of 0.24/0.76 under gravity has been conducted numerically.In this paper,the free surface is treated as a deformable interface in the direct numerical simulation of liquid bridge by using a mass conserving level set method for the first time.The results show the onset of temperature oscillation is earlier than that of transverse velocity oscillation at the hot corner.The velocity oscillation presents a certain pulsation characteristic compared with the temperature oscillation characteristic.In the transforming process from the stable stage to the oscillatory stage,the coupling effects of the temperature,velocity,free surface and concentration oscillations constitute complete oscillation mechanism of thermosolutal capillary convection.When the concentration difference is ΔCcr=0.1 and temperature difference is ΔTcr=0.5℃,the oscillatory thermosolutal capillary convection is caused by temperature difference,the oscillation form of velocity on the monitoring points near the free surface is a sine curve.In addition,when the temperature difference is ΔTcr=1.0℃,the temperature at hot corner occurs irregular oscillation.At the hot corner,the average oscillating periods of transversal velocity at three monitoring points are T≈0.04 s,and the onset times of transversal velocity is basically the same,t≈5.53 s,which have a lag（t≈0.01 s） compare with onset time of temperature oscillation.
论文目录
文章来源
类型: 国际会议
作者: Shuo YANG,Rui MA,Yu GAO,Shan-shan MA,Guo-feng WANG,You-ning XU,Qi-ming WANG,Ru-quan LIANG
来源: 2019 International Conference on Applied Mathematics, Statistics, Modeling, Simulation (AMSMS 2019) 2019-09-22
年度: 2019
分类: 基础科学
专业: 物理学
单位: Key Laboratory of Liaoning Province for Clean Combustion Power Generation and Heating Technology,Shenyang Institute of Engineering,School of Mechanical and Vehicle Engineering,Linyi University,Key Laboratory of National Education Ministry for Electromagnetic Process of Materials,Northeastern University
分类号: O552.42
DOI: 10.26914/c.cnkihy.2019.076350
页码: 91-95
总页数: 5
文件大小: 1054k