[1]张任良,徐博,严相毅,等.气-液界面对亲水微通道减阻特性的影响研究[J].燕山大学学报,2020,44(1):081-86.[doi:10.3969/j.issn.1007-791X.2020.01.012]
 ZHANG Renliang,XU Bo,YAN Xiangyi,et al.Effect of gas-liquid interface curvature on dray reduction in hydropholic microchannels[J].Journal of YanShan University,2020,44(1):081-86.[doi:10.3969/j.issn.1007-791X.2020.01.012]
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气-液界面对亲水微通道减阻特性的影响研究
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《燕山大学学报》[ISSN:1007-791X/CN:13-1219/N]

卷:
44
期数:
2020年第1期
页码:
081-86
栏目:
力学与土木工程
出版日期:
2020-01-31

文章信息/Info

Title:
Effect of gas-liquid interface curvature on dray reduction in hydropholic microchannels
文章编号:
1007-791X(2020)01-0081-06
作者:
张任良123*徐博2严相毅2赵丰泽 2
1. 燕山大学 河北省重型装备与大型结构力学可靠性重点实验室,河北 秦皇岛 066004;
2. 燕山大学 建筑工程与力学学院,河北 秦皇岛 066004;
3. 北京大学 湍流与复杂系统国家重点实验室,北京 100871

Author(s):
ZHANG Renliang123XU Bo2YAN Xiangyi2ZHAO Fengze 2
1.Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei Province,Yanshan University,
Qinhuangdao,Hebei 066004,China;2.School of Civil Engineering and Mechanics,Yanshan University,Qinhuangdao,
Hebei 066004,China;3.State Key Laboratory for Turbulence and Complex Systems,Peking University,Beijing 100871,China

关键词:
气-液界面减阻润湿性格子Boltzmann方法
Keywords:
gas-liquid interfacedrag reductionwettabilitylattice Boltzmann method
分类号:
O35
DOI:
10.3969/j.issn.1007-791X.2020.01.012
文献标志码:
A
摘要:
采用格子Boltzmann方法和Shan-Chen多相流模型,模拟研究了气-液两相流体在具有疏水凹坑的亲水微通道中的流动减阻特性,重点研究了凹坑中滞留的气体与液体形成的气-液界面的曲率对流动减阻的影响,同时也分析了气-液界面随流体流动的变形规律。研究结果表明气-液界面的曲率对流体流动有显著影响,当气-液界面曲率达到一定程度时,能够显著地减小流体的流动阻力,而当气-液界面曲率超过某一临界值,反而增加了流动阻力,在流动过程中气-液界面的形状改变与毛细管数相关。
Abstract:
Gas-liquid multiphase fluid flowing inside a hydrophilic micro-channel with hydrophobic groove was simulated by a lattice Boltzmann model and a Shan-Chen multiphase model.The effect of the gas-liquid interface curvature,which is formed by gas trapped in the groove and liquid,on the flow drag reduction is studied,and the deformation of liquid-gas interface is also examined.The results show that the gas-liquid interface curvature has significant influence on fluid flowing.When the curvature of gas-liquid interface reaches a certain level,the fluid resistance reduced significantly,when the curvature of gas-liquid interface exceeds a critical value,the fluid resistance dramatically increases instead,and the deformation of gas-liquid interface is related to Capillary number during flow.

备注/Memo

备注/Memo:
收稿日期:2018-10-29     责任编辑:温茂森
基金项目:河北省自然科学基金资助项目(A2015203086);河北省教育厅高等学校科技计划指导项目(Z2015089);燕山大学基础研究专项课题青年课题(020000534);燕山大学博士基金(B919)
作者简介:*张任良(1982-),男,河北乐亭人,博士,讲师。主要研究方向为计算流体力学及流体工程,Email:zhrleo@ysu.edu.cn。

更新日期/Last Update: 2020-03-20