| 剪切流场中分散相液滴行为研究 |
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| 引用本文： | 王亮,董守平,张建,郭长会,周建平,张明明,王会娟.剪切流场中分散相液滴行为研究[J].实验流体力学,2011(4). |
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| 作者姓名： | 王亮 董守平 张建 郭长会 周建平 张明明 王会娟 |
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| 作者单位： | 中国石油大学;胜利油田胜利工程设计咨询有限责任公司; |
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| 基金项目： | 北京市教育委员会重点学科资助项目(NO.XK114140594) |
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| 摘 要： | 目前乳化液破乳机理研究领域对剪切流场作用下分散相液滴行为的研究仍存在一些需要解答的问题。通过设计内外筒反向旋转剪切实验装置,结合数字图像处理技术,从实验角度进行了系统研究。实验数据显示液滴在剪切流场中发生三维力学变形,通过提出液滴形变非仿射度和综合变形度的概念,对液滴变形规律及其机理进行了相应的实验及理论探讨。同时,通过新颖可靠的测量方法,探索了液滴变形过程中内外流场压差的变化规律,数据显示液滴内外压差变化显著,且影响液滴形态。此外,还对剪切流场中液滴的变形过程进行了数值模拟,结果与实验及理论符合较好。提出了一套系统的液滴模型描述方法,为今后精确液滴变形形态数学模型的建立打下基础。
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| 关 键 词： | 破乳 剪切流场 液滴形变 三维力学模型 非仿射度 综合变形度 压差测量 |
Investigation on dispersed droplets behavior in a shear flow |
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| WANG Liang,DONG Shou-ping,ZHANG Jian,GUO Chang-hui,ZHOU Jian-ping,ZHANG Ming-ming,WANG Hui-juan.Investigation on dispersed droplets behavior in a shear flow[J].Experiments and Measur in Fluid Mechanics,2011(4). |
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| Authors: | WANG Liang DONG Shou-ping ZHANG Jian GUO Chang-hui ZHOU Jian-ping ZHANG Ming-ming WANG Hui-juan |
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| Institution: | WANG Liang1,DONG Shou-ping1,ZHANG Jian2,GUO Chang-hui2,ZHOU Jian-ping1,ZHANG Ming-ming1,WANG Hui-juan1(1.China University of Petroleum,Beijing 102249,China,2.Shengli Engineering & Consulting Co,Ltd) |
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| Abstract: | The dispersed emulsion droplet behavior in shear flow field is of great importance to demulsification and many industry applications.Aiming at providing fundamental insights into this field,this paper presents a systematic investigation on droplet deformation.Experiments were conducted with a novel experimental set-up,which includes a shear flow generator,image acquire system and digital image processing technique.Experimental results show that three-dimensional mechanical model is applicable to droplets de... |
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| Keywords: | demulsification shear flow droplet deformation three-dimensional mechanical model non-affine degree integral deformation degree differential pressure measurement |
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