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The numerical simulation of the flow field near membrane surface of hot-cavity in the air gap membrane distillation
Authors:  HAN lining,CHEN yongyan,TIAN rui,YANG xiaohong
Units: College of Energy and Power Engineering,Inner Mongolia University of Technology,Huhhot 010051
KeyWords: Air gap membrane distillation;Rotating inflow;Numerical simulation
ClassificationCode:TK123;TK124
year,volume(issue):pagination: 2014,34(2):40-44

Abstract:
In the air gap membrane distillation, the rotary tangential flow of outlet was used to scour the membrane surface,and the structure parameter δ and βwere adjusted to increase the turbulence intensity near the membrane surface. As result, the boundary layer thickness near the membrane surface was reduced,the concentration polarization and temperature polarization phenomenon were reduced , and the flux was increased. Fluent software can be used to simulate fluid flow field, temperature field, pressure field and flow state near the membrane surface. The concentration polarization and temperature polarization phenomenon near the membrane surface under differentδ、βcan be deduced by comparing the contrast groups of the flow field. So the optimal structure of the hot-cavity may be obtained.

Funds:
韩丽宁(1988—),男(汉),内蒙古乌兰察布市,硕士研究生,研究方向:传热传质及其强化及膜蒸馏技术。邮箱:619594406@qq.com。电话:15847666740

AuthorIntro:
内蒙古自治区自然科学基金项目(2011MS0711);国家自然科学基金资助项目(51266007)

Reference:
[1] 田瑞.高通量空气隙膜蒸馏系统的机理及应用研究[D].内蒙古:内蒙古工业大学博士学位论文.2008:12~14.
[2] 吴庸烈.膜蒸馏技术及其应用进展[J].膜科学与技术.2003,23(4):67~91.
[3] 陈永艳,田瑞,林丽华等.PIV 在膜蒸馏系统流场测量研究中的应用[J].工程热物理学报.2011,32(7):1138~1140.
[4] 王福军.计算流体动力学分析[M].北京:清华大学出版社,2004:9~14.
[5] 孔珑.工程流体力学[M].山东:中国电力出版社,1990:253~254.
[6] 张兆顺,崔桂香. 流体力学[M].北京:清华大学出版社,2006:284~296.
[7] 齐晓娟,田瑞,杨晓宏,李嵩. 旋转切向入流膜蒸馏装置热容腔CFD的数值模拟[J]. 膜科学与技术.2007,27(3):35~39.
[8] 文键.基于PIV技术的换热器内部场分布特性研究[D].西安:西安交通大学博士学位论文.2006:32~35.

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