三气泡上升聚并的数值模拟研究

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• 英文论文题名：Research on Numerical Simulation of Motion Behaviors of Three Bubbles Rising in Water
• 论文作者：王乐 ; 曹洲榕 ; 郑西朋 ; 杨顺生
• 英文论文作者：WANG Le ; CAO Zhou-rong ; ZHENG Xi-peng ; YANG Shun-sheng ; School of Civil Engineering ; Southwest Jiaotong University
• 年：2016
• 作者机构：西南交通大学土木工程学院;
• 论文关键词：VOF ; 数值模拟 ; 气泡 ; CSF
• 英文论文关键词：VOF ; numerical simulation ; bubbles ; CSF
• 会议召开时间：2016-12-14
• 会议录名称：2016全国水环境污染控制与生态修复技术高级研讨会论文集
• 语种：中文
• 分类号：X703
• 学会代码：HJKP
• 会议名称：2016全国水环境污染控制与生态修复技术高级研讨会
• 会议地点：中国云南腾冲
• 主办单位：中国环境科学学会、中国环境科学研究院
• 学会名称：中国环境科学学会
• 页数：7
• 文件大小：1197k
• 原文格式：D
• 会议级别：全国

摘要

采用Open FOAM开源计算流体力学软件,基于VOF方法,对在线气泡验证的基础上,模拟了三气泡在静水中的上升运动,分析不同气泡直径、两气泡间距、上下气泡距离对气泡上升的影响,结果发现:上下气泡之间的距离影响着气泡的上升运动,当距离过近为0.01m时,三气泡聚并为一个气泡,当距离过远为0.02m,三气泡独自上升;当下方两气泡之间间距不同时,距离越小三气泡越容易聚并;上方气泡直径越大对下方气泡的影响越显著,下方气泡越容易聚并为一个气泡。
Based on the VOF method,we firstly compare the results about on-line two bubbles' motion between numerical simulation and experiment using use the Open FOAM CFD software.Then,we simulate the motion of the three bubbles in the water and analyse the physical reactors,including different bubbles position and the bubble diameter.We found that the distance between upper bubble and below bubbles affect the bubbles rising motion.When the distance is too close to 0.01 meter, the three bubbles coalescence as a bubble; when the distance is too far away 0.02 meter, the three bubbles rise alone.When the distance of the below two bubbles is decreased,the three bubbles were more easier coalescence.And the diameter of the upper bubble have more effect on the collision of below two bubbles.

引文

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