流场环境对微结构表面防微生物附着的影响

doi:10.16182/j.issn1004731x.joss.17-0124

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (4): 687-695.doi: 10.16182/j.issn1004731x.joss.17-0124

流场环境对微结构表面防微生物附着的影响

李春曦, 薛全喜, 张湘珊, 叶学民

电站设备状态监测与控制教育部重点实验室(华北电力大学),河北保定 071003

收稿日期:2017-03-16 修回日期:2017-06-27 出版日期:2019-04-08 发布日期:2019-11-20
作者简介:李春曦(1973-),女,唐山,博士,教授,研究方向为流体力学及流体工程; 薛全喜(1990-),男,临沂,硕士生,研究方向为流动减阻。
基金资助:
国家自然科学基金(11202079), 河北省自然科学基金(A2015502058)

Effect of Flow Field Environment on Microstructure Surface Preventing Microorganism Attachment

Li Chunxi, Xue Quanxi, Zhang Xiangshan, Ye Xuemin

Key Lab of Condition Monitoring and Control for Power Plant Equipment of Education Ministry (North China Electric Power University), Baoding 071003, China

Received:2017-03-16 Revised:2017-06-27 Online:2019-04-08 Published:2019-11-20

摘要/Abstract

摘要： 通过模拟微生物模型在不同表面和流场中的运动学特征,分析了微生物周围的内流特征和防止微生物粘附的内在机理。研究表明：静态流场中,由于微坑内形成旋涡,微结构表面上的流速大于光滑表面,微生物所受变形速率及剪切应力较小,微生物可快速通过微结构表面;动态流场中,近壁区流场呈规律性波动,微生物受到较大变形速率及剪切应力的影响,需更多的动力支持其减缓自身速度以寻找合适的附着点,加大了其附着难度;逆向流场比同向流场具有更好的防污效果。

关键词: 微结构, 微生物污损, 流场, 旋涡

Abstract: The kinetic characteristics of microorganism model moving in different surfaces and flow field environments are simulated. The internal flow dynamics and the inherent mechanism of antifouling on microstructure surface are examined. The results indicate that for the static flow field, vortices are generated in the micro-pits as microorganism moves above microstructure surface. The velocity in the microstructure surface is greater than that in the smooth surface, and the strain rate and shear stress exerted on microorganism are relatively smaller resulting in the rapid passing the microstructure surface. For the dynamic flow field, the flow field presents regular fluctuations in the near-wall region. Microorganisms are affected by larger strain rate and shear stress, thus more energy is needed to support microorganisms to slow down its speed to seek suitable attachment points resulting in increasingly difficult attachment. The reverse flow field has a better antifouling effect than the co-directional flow field.

Key words: microstructure, biofouling, flow field, vortex

中图分类号:

李春曦, 薛全喜, 张湘珊, 叶学民. 流场环境对微结构表面防微生物附着的影响[J]. 系统仿真学报, 2019, 31(4): 687-695.

Li Chunxi, Xue Quanxi, Zhang Xiangshan, Ye Xuemin. Effect of Flow Field Environment on Microstructure Surface Preventing Microorganism Attachment[J]. Journal of System Simulation, 2019, 31(4): 687-695.

参考文献

[1] 黄元平, 武霖, 徐志明. 电厂换热设备微生物污垢沉积与腐蚀实验[J]. 热力发电, 2015, 44(6): 111-116.
Huang Yuanping, Wu Lin, Xu Zhiming.Experimental study on microbial fouling and corrosion on heat exchangers surface in power plants[J]. Thermal Power Generation, 2015, 44(6): 111-116.
[2] 于大禹, 张静, 尹旭, 等. 循环冷却水管路微生物污垢形成的动态模拟[J]. 化工进展, 2010, 29(11): 2193-2197.
Yu Dayu, Zhang Jing, Yin Xu, et al.Dynamic simulation for microbial fouling formation in circulating cooling water[J]. Chemical Industry and Engineering Progress, 2010, 29(11): 2193-2197.
[3] Schultz M P, Bendick J A, Holm E R, et al.Economic impact of biofouling on a naval surface ship[J]. Biofouling (S0892-7014), 2011, 27(1): 87-98.
[4] Chambers L D, Stokes K R, Walsh F C, et al.Modern approaches to marine antifouling coatings[J]. Surface and Coatings Technology (S0257-8972), 2006, 201(6): 3642-3652.
[5] Brennan A B, Baney R H, Carman M L, et al.Surface topography for non-toxic bioadhesion control: US, US 7143709 B2 [P]. 2006.
[6] Schumacher J F, Carman M L, Estes T G, et al.Engineered antifouling microtopographies-effect of feature size, geometry, and roughness on settlement of zoospores of the green alga Ulva[J]. Biofouling (S0892-7014), 2007, 23(1): 55-62.
[7] Rosenhahn A, Ederth T, Pettitt M E. Advanced nanostructures for the control of biofouling: the FP6 EU integrated project AMBIO[J]. Biointerphases (S1934-8630), 2008, 3(1): IR1-IR5.
[8] Halder P, Nasabi M, Lopez F J T, et al. A novel approach to determine the efficacy of patterned surfaces for biofouling control in relation to its microfluidic environment[J]. Biofouling (S0892-7014), 2013, 29(6): 697-713.
[9] Callow M E, Jennings A R, Brennan A B, et al.Microtopographic cues for settlement of zoospores of the green fouling alga Enteromorpha[J]. Biofouling (S0892-7014), 2002, 18(3): 229-236.
[10] Scardino A J, Harvey E, De Nys R.Testing attachment point theory: diatom attachment on microtextured polyimide biomimics[J]. Biofouling (S0892-7014), 2006, 22(1): 55-60.
[11] Scardino A J, Guenther J, De Nys R.Attachment point theory revisited: the fouling response to a microtextured matrix[J]. Biofouling (S0892-7014), 2008, 24(1): 45-53.
[12] Schumacher J F, Long C J, Callow M E, et al.Engineered nanoforce gradients for inhibition of settlement (attachment) of swimming algal spores[J]. Langmuir (S0743-7463), 2008, 24(9): 4931-4937.
[13] Carl C, Poole A J, Sexton B A, et al.Enhancing the settlement and attachment strength of pediveligers of Mytilus galloprovincialis bychanging surface wettability and microtopography[J]. Biofouling (S0892-7014), 2012, 28(2): 175-186.
[14] Halder P, Nasabi M, Jayasuriya N, et al.An assessment of the dynamic stability of microorganisms on patterned surfaces in relation to biofouling control[J]. Biofouling (S0892-7014), 2014, 30(6): 695-707.
[15] Koch D L, Subramanian G.Collective hydrodynamics of swimming microorganisms: Living fluids[J]. Annual Review of Fluid Mechanics (S0066-4189), 2011, 43: 637-659.
[16] Darnton N C, Turner L, Rojevsky S, et al.Dynamics of bacterial swarming[J]. Biophysical journal (S0006-3495), 2010, 98(10): 2082-2090.
[17] 张程宾, 陈永平, 施明恒, 等. 表面粗糙度的分形特征及其对微通道内层流流动的影响[J]. 物理学报, 2009, 58(10): 7050-7056.
Zhang Chengbin, Chen Yongping, Shi Mingheng, et al.Fractal characteristics of surface roughness and its effect on laminar flow in microchannels[J]. Acta Physica Sinica, 2009, 58(10): 7050-7056.
[18] Karniadakis G E M, Beskok A, Gad-el-Hak M. Micro flows: fundamentals and simulation[J]. Applied Mechanics Reviews (S0003-6900), 2002, 55: 76.
[19] Rosenhahn A, Sendra G H.Surface sensing and settlement strategies of marine biofouling organisms[J]. Biointerphases (S1934-8630), 2012, 7(1): 63.
[20] 胡海豹, 宋保维, 潘光, 等. 鲨鱼沟槽表皮减阻机理的仿真研究[J]. 系統仿真学报, 2007, 19(21): 4901-4903.
Hu Haibao, Song Baowei, Pan Guang, et al.Simulation Studies on Drag Reduction Mechanism of Shark Riblets Surface[J]. Journal of System Simulation, 2007, 19(21): 4901-4903.

流场环境对微结构表面防微生物附着的影响

Effect of Flow Field Environment on Microstructure Surface Preventing Microorganism Attachment

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