两平行圆盘间或两圆球间存在二阶流体时的挤压流动

徐春晖; 黄文彬; 徐泳

两平行圆盘间或两圆球间存在二阶流体时的挤压流动

中国农业大学理学院,北京 100083

基金项目: 国家自然科学基金资助项目(10372113)

详细信息

作者简介:
徐春晖(1971- ),女,辽宁人,副教授,博士(联系人.Tel:+86-10-62336992;Fax:+86-10-62336777;E-mail:chunhui@cau.edu.cn).

中图分类号: O347.7；O373
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- 文章访问数: 2525
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- 被引次数: 0
出版历程
- 收稿日期: 2002-10-25
- 修回日期: 2004-04-20
- 刊出日期: 2004-09-15

Squeeze Flow of a Second-Order Fluid Between Two Parallel Disks or Two Spheres

College of Science, China Agricultural University, Beijing 100083, P. R. China

摘要

摘要: 为了进行湿颗粒群的离散元模拟，研究两圆球颗粒间二阶流体在挤压流动时的法向粘性力．首先用小参数法对两平行圆盘间二阶流体挤压流动的速度场和正应力分布进行了近似分析，然后用类似的方法，分析任意两圆球间二阶流体的挤压流动，得到了压力分布和法向粘性力的解析解．
- 离散元法 /
- 二阶流体 /
- 挤压流动 /
- 法向粘性力 /
- 小参数法
Abstract: The normal viscous force of squeeze flow between two arbitrary rigid spheres with an interstitial second-order fluid was studied for modeling wet granular materials using the discrete element method.Based on the Reynolds.lubrication theory,the small parameter method was introduced to approximately analyze velocity field and stress distribution between the two disks.Then a similar procedure was carried out for analyzing the normal interaction between two nearly touching,arbitrary rigid spheres to obtain the pressure distribution and the resulting squeeze force.It has been proved that the solutions can be reduced to the case of a Newtonian fluid when the non-Newtonian terms are neglected.
- discrete element method /
- second-order fluid /
- squeeze flow /
- normal viscous force /
- small parameter method

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参考文献(17)

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两平行圆盘间或两圆球间存在二阶流体时的挤压流动

作者简介:
徐春晖(1971- ),女,辽宁人,副教授,博士(联系人.Tel:+86-10-62336992;Fax:+86-10-62336777;E-mail:chunhui@cau.edu.cn).

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Squeeze Flow of a Second-Order Fluid Between Two Parallel Disks or Two Spheres

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两平行圆盘间或两圆球间存在二阶流体时的挤压流动

作者简介: 徐春晖(1971- ),女,辽宁人,副教授,博士(联系人.Tel:+86-10-62336992;Fax:+86-10-62336777;E-mail:chunhui@cau.edu.cn).

计量

出版历程

Squeeze Flow of a Second-Order Fluid Between Two Parallel Disks or Two Spheres

计量

出版历程

目录

作者简介:
徐春晖(1971- ),女,辽宁人,副教授,博士(联系人.Tel:+86-10-62336992;Fax:+86-10-62336777;E-mail:chunhui@cau.edu.cn).