苏州大学材料与化学化工学部化工与环境工程学院,苏州市绿色化工重点实验室,江苏 苏州 215123
夏红桃(1993—),女,硕士研究生,20164209240@stu.suda.edu.cn
肖杰(1980—),男,博士,教授,jie.xiao@suda.edu.cn
收稿:2018-10-16,
修回:2018-12-28,
网络首发:2020-06-16,
纸质出版:2019-02-05
移动端阅览
夏红桃, 邹思宇, 肖杰. 随机粗糙表面上剪切变稀流体液滴的沉积过程模拟[J]. 化工学报, 2019, 70(2): 634-645
XIA Hongtao, ZOU Siyu, XIAO Jie. Numerical simulation of shear-thinning droplet impacting on randomly rough surfaces[J]. CIESC Journal, 2019, 70(2): 634-645
夏红桃, 邹思宇, 肖杰. 随机粗糙表面上剪切变稀流体液滴的沉积过程模拟[J]. 化工学报, 2019, 70(2): 634-645 DOI: 10.11949/j.issn.0438-1157.20181213.
XIA Hongtao, ZOU Siyu, XIAO Jie. Numerical simulation of shear-thinning droplet impacting on randomly rough surfaces[J]. CIESC Journal, 2019, 70(2): 634-645 DOI: 10.11949/j.issn.0438-1157.20181213.
采用计算流体力学相场方法模拟了单个剪切变稀非牛顿流体液滴在随机粗糙表面的沉积过程,并分析揭示了随机粗糙表面形貌对液滴运动状态及平衡状态的影响。结果表明,在指定的相同操作条件下,即使在光滑表面,剪切变稀流体液滴比牛顿流体液滴铺展更大且回缩至平衡所需时间更少,不存在二次铺展;剪切变稀流体液滴最大铺展直径随均方根粗糙度
Rr
与Wenzel粗糙度
Wr
的增加而略有增加。
Wr
相同时,随着
Rr
增大,液滴最终铺展系数减小,高度系数增大,平衡接触面积及接触角有所减小。在
Rr
相同情况下,随着
Wr
增大,液滴达到平衡所需时间缩短,平衡接触面积线性增大。
The computational fluid dynamics phase field method was used to simulate the deposition process of single shear thinning non-Newtonian fluid droplets on a random rough surface. The analysis revealed the influence of random rough surface morphology on the movement state and equilibrium state of droplets. It was shown that
even on a smooth surface
under the same operating conditions
a shear-thinning droplet can demonstrate quite different impact behavior as compared with a Newtonian droplet. The shear-thinning property offers a much larger spreading ratio
and shorter time to reach equilibrium. The initial spreading phase is followed by a recoiling to equilibrium phase for the shear-thinning droplet
while the Newtonian droplet has a second spreading phase after t
he recoiling phase. On randomly rough surfaces
the maximum spreading ratio increases with the increase of either root-mean-square roughness (
Rr
) or Wenzel roughness parameter (
Wr
). With the same value of
Wr
increasing
Rr
can lead to the decrease of the final spreading ratio
and slight decreases of equilibrium contact area and contact angle. With the same value of
Rr
increasing
Wr
offers a faster deposition to reach an equilibrium state
and a linearly increased contact area.
宋云超 , 宁智 , 孙春华 , 等 . 液滴撞击湿润壁面运动形态及飞溅运动机制 [J ] . 力学学报 , 2013 , 6 : 833 - 842 .
Song Y C , Ning Z , Sun C H , et al . Droplet impact on wet wall and splash motion mechanism [J ] . Chinese Journal of Mechanics , 2013 , 6 : 833 - 842 .
Smith F R , Buntsma N C , Brutin D . Roughness influence on human blood drop spreading and splashing [J ] . Langmuir , 2018 , 34 : 1143 - 1150 .
Šikalo Š , Wilhelm H D , Roisman I V , et al . Dynamic contact angle of spreading droplets: experiments and simulations [J ] . Physics of Fluids , 2005 , 17 ( 6 ): 1 - 13 .
Li J , Xiao J , Huang Y L , et al . Integrated process and roduct analysis: a multiscale approach to paint spray [J ] . AIChE J. , 2007 , 53 : 2841 - 2857 .
Xiao J , Li J , Lou H H , et al . ACS-based dynamic ptimization for curing of polymeric coatings [J ] . AIChE J. , 2006 , 52 : 1410 - 1422 .
Peters C A , Nichols M E , Ellwood K R J . The evolution of surface texture in automative coatings [J ] . Journal of Coatings Technology and Research , 2011 , 8 : 469 - 480 .
刘红 , 解茂昭 , 史俊瑞 , 等 . 单液滴碰撞多孔介质过程的数值研究 [J ] . 燃烧科学与技术 , 2011 , 17 ( 4 ): 287 - 294 .
Liu H , Xie M Z , Liu H S , et al . Numerical simulation of single droplet impact on a wall in porous media [J ] . Science and Technology of Combustion , 2011 , 17 ( 4 ): 287 - 294 .
Engel O G . Waterdrop collisions with solid surfaces [J ] . Journal of Research of the National Bureau of Standards , 1955 , 54 ( 5 ): 281 - 98 .
毕菲菲 , 郭亚丽 , 沈胜强 , 等 . 液滴撞击固体表面铺展特性的实验研究 [J ] . 物理学报 , 2012 , 61 ( 18 ): 1 - 6 .
Bi F F , Guo Y L , Shen S Q , et al . Experimental study of spread characteristics of droplet impacting solid surface [J ] . Acta Physica Sinica , 2012 , 61 ( 18 ): 1 - 6 .
Dong H , Carr W W , Bucknall D G , et al . Temporally-resolved inkjet drop impaction on surfaces [J ] . AIChE J. , 2007 , 53 ( 10 ): 2606 - 2617 .
李大树 , 仇性启 , 郑志伟 , 等 . 液滴冲击不同浸润性壁面的数值分析 [J ] . 农业机械学报 , 2015 , 46 ( 7 ): 294 - 302 .
Li D S , Qiu X Q , Zheng Z W , et al . Numerical analysis of droplet impact on surfaces with different wettabilities [J ] . Transactions of the Chinese Society for Agricultural Machinery , 2015 , 46 ( 7 ): 294 - 302 .
梁超 , 王宏 , 朱恂 , 等 . 液滴撞击不同浸润性壁面动态过程的数值模拟 [J ] . 化工学报 , 2013 , 64 ( 8 ): 2745 - 2751 .
Liang C , Wang H , Zhu X , et al . Numerical simulation of droplet impact on surfaces with different wettabilities [J ] . CIESC Journal , 2013 , 64 ( 8 ): 2745 - 2751 .
Scheller B L , Bousfield D W . Newtonian drop impact with a solid surface [J ] . AIChE J. , 1995 , 41 ( 6 ): 1357 - 1367 .
Fukai J , Shiiba Y , Yamamoto T , et al . Wetting effects on the spreading of a liquid droplet colliding with a flat surface: experiment and modeling [J ] . Physics of Fluids , 1995 , 7 ( 2 ): 236 - 247 .
Fukai J , Shiiba Y , Miyatake O . Theoretical study of droplet impingement on a solid surface below the leidenfrost temperature [J ] . International Journal of Heat & Mass Transfer , 1997 , 40 ( 10 ): 2490 - 2492 .
Gao X , Li R . Spread and recoiling of liquid droplets impacting solid surfaces [J ] . AIChE J. , 2014 , 60 ( 7 ): 2683 - 2691 .
Li X , Mao L , Ma X . Dynamic behavior of water droplet impact on microtextured surfaces: the effect of geometrical parameters on anisotropic wetting and the maximum spreading diameter [J ] . Langmuir , 2013 , 29 ( 4 ): 1129 - 1138 .
毛靖儒 , 施红辉 , 俞茂铮 . 液滴撞击固体表面时的流体动力学特性试验研究 [J ] . 力学与实践 , 1995 , 17 ( 3 ): 52 - 54 .
Mao J R , Shi H H , Yu M Z . Experimental study on hydrodynamic characteristics of drops impacting solid surfaces [J ] . Mechanics and Practice , 1995 , 17 ( 3 ): 52 - 54 .
David R , Neumann W . Contact angle hysteresis on randomly rough surfaces: a computational study [J ] . Langmuir , 2013 , 29 : 4551 - 4558 .
Dupuis A , Yeomans J M . Modeling droplets on superhydrophobic surfaces: equilibrium states and transitions [J ] . Langmuir , 2005 , 21 : 2624 - 2629 .
Kusumaatmaja H , Yeomans J M . Modeling contact angle hysteresis on chemically patterned and superhydrophobic surfaces [J ] . Langmuir , 2007 , 23 : 6019 - 6032 .
Kusumaatmaja H , Vrancken R J , Bastiaansen C W M , et al . Anisotropic drop morphologies on corrugated surfaces [J ] . Langmuir , 2008 , 24 : 7299 - 7308 .
胡雷 , 郭加宏 , 王小永 . 格子Boltzmann方法模拟双液滴同时冲击固体表面液膜 [J ] . 水动力学研究与进展(A辑) , 2011 , 26 ( 1 ): 11 - 18 .
Hu L , Guo J H , Wang X Y . Lattice Boltzmann method for simulating simultaneous impact of two droplets on solid surface liquid membranes [J ] . Hydrodynamic Research and Progress (A Series) , 2011 , 26 ( 1 ): 11 - 18 .
Kai R , Feuillebois F . Influence of surface roughness on liquid drop impact [J ] . J. Colloid Interface Sci. , 1998 , 203 ( 1 ): 16 - 30 .
Xiao J , Pan F , Xia H T , et al . Computational study of single droplet deposition on randomly rough surfaces: surface morphological effect on droplet impact dynamics [J ] . Industrial & Engineering Chemistry Research , 2018 , 57 ( 22 ): 7664 - 7675 .
Nigen S . Experimental investigation of the impact of an (apparent) yield-stress material [J ] . Atomization and Sprays , 2005 , 15 ( 1 ): 103 - 118 .
German G , Bertola V . Impact of shear-thinning and yield-stress drops on solid substrates [J ] . Journal of Physics: Condensed Matter , 2009 , 21 ( 37 ): 375111(16 .
贺征 , 郜冶 , 顾璇 , 等 . 液滴与壁面碰撞模型研 [J ] . 哈尔滨工程大学学报 , 2009 , 30 ( 3 ): 267 - 270 .
He Z , Gao Y , Gu X , et al . Study on droplet wall collision model [J ] . Journal of Harbin Engineering University , 2009 , 30 ( 3 ): 267 - 270 .
闵琪 , 段远源 , 王晓东 , 等 . 非牛顿流体液滴铺展过程的格子Boltzmann模拟 [J ] . 热科学与技术 , 2013 , 4 ( 12 ): 1 - 7 .
Min Q , Duan Y Y , Wang X D , et al . Lattice Boltzmann simulation of the spreading of non-newtonian fluids [J ] . Journal of Thermal Science and Technology , 2013 , 4 ( 12 ): 1 - 7 .
Yue P T , Feng J J , Liu C , et al . A diffuse-interface method for simulating two-phase flows of complex fluids [J ] . Journal of Fluid Mechanics , 2004 , 515 ( 515 ): 293 - 317 .
Xiao J , Chaudhuri S . Design of anti-icing coatings using supercooled droplets as nano-to-microscale probes [J ] . Langmuir , 2012 , 28 : 4434 - 4446 .
Lou H H , Huang Y L . Integrated modeling and simulation for improved reactive drying of clearcoat [J ] . Industrial & Engineering Chemistry Research , 2000 , 39 ( 2 ): 500 - 507 .
Xu J , Koelling K W . Temperature dependence of rheological behavior of a metallic automotive waterborne basecoat [J ] . Progress in Organic Coatings , 2005 , 53 ( 3 ): 169 - 176 .
Kang H C , Jacobi A M . Equilibrium contact angles of liquid droplets on ideal rough solids [J ] . Langmuir , 2011 , 27 : 14910 - 14918 .
Yang F , Zheng Z , Xiao R , et al . Comparison of two fractal interpolation methods [J ] . Phys. A , 2017 , 469 : 563 - 571 .
Izquierdo S , Lopez C I , Valdes J R , et al . Multiscale characterization of computational rough surfaces and their wear using self-affine principal profiles [J ] . Wear , 2012 , 274/275 : 1 - 7 .
Khoufech A , Benali M , Saleh K . Influence of liquid formulation and impact conditions on the wetting of hydrophobic surfaces by aqueous polymeric solutions [J ] . Chemical Engineering Research & Design , 2016 , 110 : 233 - 244 .
0
浏览量
1
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010102001995号