| 幂律流体在单根弯曲毛细管中的毛细上升 |
| |
| 引用本文： | 王世芳,郁铂铭.幂律流体在单根弯曲毛细管中的毛细上升[J].力学与实践,2011,33(6):18-22. |
| |
| 作者姓名： | 王世芳 郁铂铭 |
| |
| 作者单位： | 1. 华中科技大学;2. 华中科技大学物理学院; |
| |
| 基金项目： | 国家自然科学重点基金(10932010)资助项目 |
| |
| 摘 要： | 基于分形理论和数值模拟的方法, 给出了幂律流体在单根弯曲毛细管的上升高
度和上升累积质量随时间的变化关系曲线. 研究结果表明: 在上升初期阶段, 重力因素可以
忽略; 但随着时间增加, 重力因素的影响越来越大; 幂律流体上升的最大高度只与毛细管直
径$\lambda$、幂律流体密度$\rho $有关, 与毛细管弯曲程度$\tau _0
$和幂指数$n$无关; 幂指数$n$越小, 上升初期上升速度越快; 迂曲度分形维数$D_T
$越大, 平衡时吸入的幂律流体质量也越大.
|
| 关 键 词： | 幂律流体 渗析高度 迂曲度分形维数 Lucas—Washburn方程 |
| 收稿时间： | 2011-05-23 |
CAPILLARY RISE OF A POWER LAW LIQUID IN A SINGLE TORTUOUS CAPILLARY |
| |
| WANG Shifang YU Boming.CAPILLARY RISE OF A POWER LAW LIQUID IN A SINGLE TORTUOUS CAPILLARY[J].Mechanics and Engineering,2011,33(6):18-22. |
| |
| Authors: | WANG Shifang YU Boming |
| |
| Institution: | 1. Huazhong University of Science and Technology;2. ; |
| |
| Abstract: | Based on the fractal theory and the numerical simulation method,the curres of the height of imbibition and the mass of imbibition against time are obtained for a power law liquid in a single tortuous capillary.The results show that the effect of the gravity may be neglected at the initial stage of capillary rise and the effect of the gravity becomes important as time goes on.The maximum equilibrium height of imbibition for a power law liquid in a single tortuous capillary is found to be a function of the ca... |
| |
| Keywords: | a power law liquid imbibition tortuousity fractal dimension Lucas-Washburn equation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《力学与实践》浏览原始摘要信息 |
| 点击此处可从《力学与实践》下载免费的PDF全文 |
