[1]崔海航,张永波,张静刚,等.微孔道内渗透现象的数值模拟[J].西安建筑科技大学学报(自然科学版),2018,50(02):277-0284.[doi:10.15986/j.1006-7930.2018.02.019]
　CUI Haihang,ZHANG Yongbo,ZHANG Jinggang,et al.Simulation of osmosis in micro channels[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(02):277-0284.[doi:10.15986/j.1006-7930.2018.02.019]
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微孔道内渗透现象的数值模拟()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年02期
页码:
277-0284
栏目:
出版日期:
2018-05-28

文章信息/Info

Title:
Simulation of osmosis in micro channels
文章编号:
1006-7930(2018)02-077-08
作者:
崔海航; 张永波; 张静刚; 张鸿雁;  陈 力
(西安建筑科技大学 环境与市政工程学院,陕西 西安,710055)
Author(s):
CUI Haihang;  ZHANG Yongbo;  ZHANG Jinggang;  ZHANG Hongyan
(School of Environmental and Municipal Engineering, Xi’an Univ. of Arch and Tech , Xi’an 710055, China)
关键词:
边界滑移; KK模型; CFD; 渗透
Keywords:
b oundary slip; Kedem-Katchalsky model; CFD; Osmosis
分类号:
X382
DOI:
10.15986/j.1006-7930.2018.02.019
文献标志码:
A
摘要:
渗透现象是一种广泛应用于污水处理、海水淡化、渗透马达和微泵等领域的自然现象而KedemKatchalsky（KK）模型作为描述渗透现象的经典热力学模型，存在诸多不足之处，如对压强分布描述不够清晰、无法揭示壁面位移情况等为更加深入的理解渗透现象，建立了边界滑移条件下基于CFD模拟单孔道数学模型通过对KK模型中溶质反射系数和纯水渗透系数的模拟，验证了模型的可靠性在此基础上，模拟并研究了孔道内流场分布、压强分布及边界应力分布同时合理地解释了溶质反向渗透及溶胀现象
Abstract:
Osmosis phenomenon is a natural phenomenon widely encountered in the fields of sewage treatment, seawater desalination, osmotic motor and micropump. The Kedem-Katchalsky ( K-K) model, as the classical thermodynamic model for describing the osmotic phenomenon, has many shortcomings, such as the description of the pre ssure distribution is not clear and it can’t reveal the wall displacement and so on. In order to understand of the phenomenon of osmosis deeply, the mathematical model of a single channel, based on CFD software, was established under the condition of boundary slip. The reliability of the model was verified by the simulation of solute reflection coefficient and pure water permeability coefficient in the K-K model. On this basis, the flow field distribution, pressure distribution and boundary stress distribution were simulated and studied. At the same time, solute reverse osmosis and swelling were explained reasonably

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备注/Memo

备注/Memo:
收稿日期:2017-03-09  修改稿日期:2018-03-29
基金项目:国家自然科学基金项目（11447133，11602187）；陕西省教育厅重点实验室基金资助项目（15JS045）
第一作者:崔海航（1975-），男，副教授，主要从事水处理技术数值模拟研究，cuihaihang@xauat.edu.cn
更新日期/Last Update: 2018-05-28