1.中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
2.中国科学院大学,北京 100049
[ "孙建文(1997-),男,辽宁营口人,硕士研究生,主要从事电渗流电极拓扑优化设计的研究。E-mail: sunjianwen20@mails.ucas.ac.cn" ]
[ "邓永波(1985-),男,山东潍坊人,博士,研究员,博士生导师,主要从事拓扑优化、微流体、纳米光学等方面的研究。E-mail: dengyb@ciomp.ac.cn" ]
扫 描 看 全 文
孙建文, 张健宇, 李博文, 等. 基于拓扑优化的电渗流微混合器电极[J]. 光学精密工程, 2023,31(17):2515-2524.
SUN Jianwen, ZHANG Jianyu, LI Bowen, et al. Topology optimization of electrodes for electroosmotic flow micromixer[J]. Optics and Precision Engineering, 2023,31(17):2515-2524.
孙建文, 张健宇, 李博文, 等. 基于拓扑优化的电渗流微混合器电极[J]. 光学精密工程, 2023,31(17):2515-2524. DOI: 10.37188/OPE.20233117.2515.
SUN Jianwen, ZHANG Jianyu, LI Bowen, et al. Topology optimization of electrodes for electroosmotic flow micromixer[J]. Optics and Precision Engineering, 2023,31(17):2515-2524. DOI: 10.37188/OPE.20233117.2515.
电渗是当前芯片实验室设备中微流体常用的驱动方式之一,其中电极版图对控制电渗驱动的外电场起到关键作用。针对电渗流电极版图大多基于尺寸优化和形状优化的方法难以大幅提升微流控器件性能的问题,建立电渗流电极拓扑优化模型,采用滤波方程和阈值投影控制电极结构的特征尺寸,通过连续伴随分析方法获得模型的伴随敏度,进而演化电极版图的结构设计变量,最终实现电渗流电极的拓扑优化。基于上述拓扑优化方法设计电渗流微混合器的电极版图,并对影响微混合器混合效果的因素进行分析。结果表明,电渗流微混合器的混合评价指数达到0.047,能够实现两种不同浓度溶液的完全混合。微混合器良好的混合性能验证了本文提出电渗流电极拓扑优化方法的有效性。
Electroosmotic flow is one of the commonly used driving mechanisms for microfluidics in current chip laboratory equipment, and the electrode layout plays an important role in controlling the external electric field driven by electroosmotic flow. At present, the layout of an electroosmotic flow electrode is mostly designed based on size optimization and shape optimization, making it difficult to improve the performance of microfluidic devices. To solve this problem, a topology optimization model of an electroosmotic flow electrode is established. The filter equation and threshold projection are used to control the characteristic size of the electrode structure. The adjoint sensitivity of the model is obtained by a continuous adjoint analysis method, and then the structural design variables of electrode layout are developed. Finally, the topology of an electroosmotic flow electrode is optimized. Based on this topology optimization method, the electrode layout of an electroosmotic flow micromixer was designed, and the factors affecting its mixing effect were analyzed. The results show that the mixing evaluation index of the electroosmotic flow micromixer reaches 0.047, which can completely mix two different concentration solutions. The good mixing performance of the micromixer verifies the effectiveness of the proposed electroosmotic flow method for electrode topology optimization.
微流体拓扑优化电渗微混合器电极
microfludicstopology optimizationelectroosmosismicromixerelectrodes
NICULESCU A G, CHIRCOV C, BÎRCĂ A C, et al. Fabrication and applications of microfluidic devices: a review[J]. International Journal of Molecular Sciences, 2021, 22(4): 2011. doi: 10.3390/ijms22042011http://dx.doi.org/10.3390/ijms22042011
SHARMA I, THAKUR M, SINGH S, et al. Microfluidic devices as a tool for drug delivery and diagnosis: a review[J]. International Journal of Applied Pharmaceutics, 2021: 95-102. doi: 10.22159/ijap.2021v13i1.39032http://dx.doi.org/10.22159/ijap.2021v13i1.39032
KUSAMA S, SATO K, MATSUI Y, et al. Transdermal electroosmotic flow generated by a porous microneedle array patch[J]. Nature Communications, 2021, 12: 658. doi: 10.1038/s41467-021-20948-4http://dx.doi.org/10.1038/s41467-021-20948-4
陈雪叶,李铁川. 被动式微混合器微通道外形及障碍物布局[J]. 光学 精密工程,2015,23(10z):403-409. doi: 10.3788/OPE.20152313.0403http://dx.doi.org/10.3788/OPE.20152313.0403
CHEN X Y, LI T CH. Micro-channel shapes and obstacle layout in passive micromixers [J]. Opt. Precision Eng., 2015,23(10z):403-409. (in Chinese). doi: 10.3788/OPE.20152313.0403http://dx.doi.org/10.3788/OPE.20152313.0403
张贺, 杨爽, 揣荣岩, 等. 混沌流微混合器的性能优化[J]. 光学 精密工程, 2022, 30(3): 286-295. doi: 10.37188/OPE.20223003.0286http://dx.doi.org/10.37188/OPE.20223003.0286
ZHANG H, YANG SH, CHUAI R Y, et al. Performance optimization of chaotic flow micromixer[J]. Opt. Precision Eng., 2022, 30(3): 286-295.(in Chinese). doi: 10.37188/OPE.20223003.0286http://dx.doi.org/10.37188/OPE.20223003.0286
LEE M G, CHOI S, PARK J K. Rapid laminating mixer using a contraction-expansion array microchannel[J]. Applied Physics Letters, 2009, 95(5): 051902. doi: 10.1063/1.3194137http://dx.doi.org/10.1063/1.3194137
MATSUBARA K, NARUMI T. Microfluidic mixing using unsteady electroosmotic vortices produced by a staggered array of electrodes[J]. Chemical Engineering Journal, 2016, 288:638-647. doi: 10.1016/j.cej.2015.12.013http://dx.doi.org/10.1016/j.cej.2015.12.013
SEO H S, KIM Y J. Effect of electrode positions on the mixing characteristics of an electroosmotic micromixer[J]. Journal of Nanoscience and Nanotechnology, 2014, 14(8): 6167-6171. doi: 10.1166/jnn.2014.8802http://dx.doi.org/10.1166/jnn.2014.8802
XIONG S Y, CHEN X Y, CHEN H F, et al. Numerical study on an electroosmotic micromixer with rhombic structure[J]. Journal of Dispersion Science and Technology, 2021, 42(9): 1331-1337. doi: 10.1080/01932691.2020.1748644http://dx.doi.org/10.1080/01932691.2020.1748644
FARAHINIA A, JAMAATI J, NIAZMAND H, et al. Numerical analysis of the heterogeneity effect on electroosmotic micromixers based on the standard deviation of concentration and mixing entropy index[J]. Micromachines, 2021, 12(9): 1055. doi: 10.3390/mi12091055http://dx.doi.org/10.3390/mi12091055
FARAHINIA A, JAMAATI J, NIAZMAND H, et al. The effect of heterogeneous surface charges on mixing in a combined electroosmotic/pressure-driven micromixer[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2021, 43(11): 1-13. doi: 10.1007/s40430-021-03215-xhttp://dx.doi.org/10.1007/s40430-021-03215-x
LV H L, CHEN X Y. New insights into the mixing behavior of Non-Newtonian fluid in electroosmotic micromixer[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2022, 44(5): 181. doi: 10.1007/s40430-022-03502-1http://dx.doi.org/10.1007/s40430-022-03502-1
CHEN Z, WANG Y L, ZHOU S. Numerical analysis of mixing performance in an electroosmotic micromixer with cosine channel walls[J]. Micromachines, 2022, 13(11): 1933. doi: 10.3390/mi13111933http://dx.doi.org/10.3390/mi13111933
ALIZADEH A, HSU W L, WANG M , et al. Electroosmotic flow: from microfluidics to nanofluidics[J]. Electrophoresis, 2021, 42(7/8): 834-868. doi: 10.1002/elps.202000313http://dx.doi.org/10.1002/elps.202000313
BORRVALL T, PETERSSON J. Topology optimization of fluids in Stokes flow[J]. International Journal for Numerical Methods in Fluids, 2003, 41(1): 77-107. doi: 10.1002/fld.426http://dx.doi.org/10.1002/fld.426
LAZAROV B S, SIGMUND O. Filters in topology optimization based on Helmholtz-type differential equations[J]. International Journal for Numerical Methods in Engineering, 2011, 86(6): 765-781. doi: 10.1002/nme.3072http://dx.doi.org/10.1002/nme.3072
LI D. Encyclopedia of Microfluidics and Nanofluidics [M]. Springer Science & Business Media, 2008. doi: 10.1007/978-0-387-48998-8http://dx.doi.org/10.1007/978-0-387-48998-8
CHEN L M, DENG Y B, ZHOU T, et al. A novel electroosmotic micromixer with asymmetric lateral structures and DC electrode arrays[J]. Micromachines, 2017, 8(4): 105. doi: 10.3390/mi8040105http://dx.doi.org/10.3390/mi8040105
0
浏览量
14
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构