G'/> Velocity of lateral drying fronts in film formation by drying of colloidal dispersions. A 2D simulation
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Colloid and Interface Science >Velocity of lateral drying fronts in film formation by drying of colloidal dispersions. A 2D simulation
【24h】

Velocity of lateral drying fronts in film formation by drying of colloidal dispersions. A 2D simulation

机译：胶体分散体干燥膜形成横向干燥前速度的速度。 2D模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Graphical abstractDisplay OmittedAbstractDrying of colloids is always heterogeneous and proceeds by progression of drying fronts in various directions at various velocities. The fundamental mechanisms at the origin of appearance and motion of drying fronts are still not totally understood. This article addresses these questions in the case of lateral drying fronts by using the new simulation tool based on cellular automata we recently developed (Langmuir 2015 and 2017). For the first time, a 2D simulation is proposed. Silica dispersions were used as model colloids to test the simulation. Film profiles were measured during drying by optical profilometry as well as front velocities by image processing. In the cases of non-circular deposits (squares and rectangles), drying fronts in the plane of the film (x,y plane, x being the longest side in the case of a rectangle) do not move at the same speed along sides and diagonals, the velocity order being diagonal >x (longest side) >y (shortest side). The velocity contrast (difference between x and y sides) increases with the aspect ratio of the rectangle. This behavior is explained and accounted for by the 2D simulation presented in this article. Experimental results reasonably well validate the simulation.]]>
机译：<！[CDATA [ 图形抽象 显示中省略 抽象 胶体的干燥是通过总是在以各种速度各种方向的干燥方面的进展异构并且前进。在外观和干燥前沿的运动的起点的基本机制仍然不完全理解。本文通过使用基于元胞自动机新的仿真工具，我们最近开发（朗缪尔2015年和2017年），解决了横向干燥战线的情况下这些问题。这是第一次，一个2D仿真算法。二氧化硅分散体被用作模型胶体来测试模拟。由光学轮​​廓干燥以及通过图像处理前的速度期间测量膜轮廓。在非圆形沉积物（正方形和矩形），干燥前沿在膜的平面的情况下（X，Y平面上，x是在矩形的情况下，最长的边）不沿着侧面相同的速度移动，并且对角线，速度次序为对角线> X（最长边）> Y（最短边）。速度差（x和y侧之间的差）与所述矩形的纵横比增大。这种现象说明，并通过在这篇文章中提出的2D模拟核算。实验结果相当好验证模拟 ]]>

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号