| 外加磁场下磁性液丝的稳定性分析 |
| |
| 引用本文： | 杨骏,马洁,洪若瑜,丁剑敏. 外加磁场下磁性液丝的稳定性分析[J]. 计算机与应用化学, 2006, 23(6): 491-496 |
| |
| 作者姓名： | 杨骏 马洁 洪若瑜 丁剑敏 |
| |
| 作者单位： | 暨南大学化学系,广东,广州,510632;苏州大学化工系,江苏省有机合成重点实验室,江苏,苏州,215123;中国科学院过程工程研究所多相反应重点实验室,北京,100080;MSC软件公司,2 MacArthur Place,Santa Ana,CA 92707美国 |
| |
| 基金项目： | 国家自然科学基金;教育部留学回国人员科研启动基金 |
| |
| 摘 要： | 对处于外加轴向磁场的影响下的磁性液丝进行数学模拟,研究其稳定性。考虑了磁场的作用,对液丝的长波理论模型进行必要的修正。研究了不同条件下磁性液丝的变化发展过程和受力情况,揭示了外加磁场的作用。结果表明：外加磁场减缓了磁性液丝的破裂过程,磁场力类似于非牛顿流体中的弹性行为,在一定程度上抵消了毛细管力。随着初始磁场强度和磁化率的增大,磁场力逐渐增大。当磁场力显著增大时,液丝的变化发展过程被完全阻碍。
|
| 关 键 词： | 磁性液丝 稳定性 磁场 数学模拟 |
| 文章编号： | 1001-4160（2006）06-491-496 |
| 收稿时间： | 2006-01-08 |
| 修稿时间： | 2006-01-082006-04-10 |
Stability analysis of magnetic filaments under applied magnetic field |
| |
| Yang Jun,Ma Jie,Hong Ruoyu,Ding Jianmin. Stability analysis of magnetic filaments under applied magnetic field[J]. Computers and Applied Chemistry, 2006, 23(6): 491-496 |
| |
| Authors: | Yang Jun Ma Jie Hong Ruoyu Ding Jianmin |
| |
| Affiliation: | 1.Departrnent of Chemistry, Jinan University, Guangzhou, 510632, Guangdong Province, China, 2.Department of Chem. Eng. and Key Lab. of Organic Synthesis of Jiangsu Province, Soochow Univ., Suzhou 215123, Jiangsu Province, China; 3.Key Lab. of Multiphase Reaction, Inst. of Process Eng., Chinese Academy of Sciences, Beijing 100080, China; 4. MSC.Software, 2 MacArthur Place, Santa Ana, CA 92707, USA |
| |
| Abstract: | A mathematical model is presented with considering the stability of a slender jet of magnetic fluid under an axial magnetic field.Modifications which are necessary to account for the influence of the magnetic field are introduced into a long-wave theory of the slender jet.Magnetic fluid jet development and the force balance analysis are presented.The effects of the applied magnetic field are revealed.The results show that the magnetic field slows down the filament pinch-off.The magnetic force expresses alike a kind of elastic behavior to counteract the capillary force.When the initial magnetic field intensity and the magnetic susceptibility increase, the magnetic force increases gradually.As the magnetic force increases remarkably,the evolution of the jet surface has been completely hindered. |
| |
| Keywords: | magnetic fluid jet stability magnetic field numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
