| Bingham流体数值模拟的双罚函数—正交投影的隐式求解方法 |
| |
| 引用本文： | 沙德松,郭杏林,顾元宪. Bingham流体数值模拟的双罚函数—正交投影的隐式求解方法[J]. 应用数学和力学, 1998, 19(8): 678-688 |
| |
| 作者姓名： | 沙德松 郭杏林 顾元宪 |
| |
| 作者单位： | 大连理工大学工程力学系工业装备结构分析国家重点实验室, 大连 116023 |
| |
| 摘 要： | 本文对Bingham流体给出了双罚函数逼近和正交投影的隐式求解方法.这个方法把Bingham流体处理为承受不等式应力约束的Newton流体的逼近解.有效地模拟了可以出现流动或不流动的“刚性核”的Bingham流体的流动问题.
|
| 关 键 词： | Bingham流体 罚函数 正交投影 有限元 |
| 收稿时间： | 1997-03-26 |
An Implicit Solution of Bi-Penalty Approximation with Orthogonality Projection for the Numerical Simulation of Bingham Fluid Flow |
| |
| Affiliation: | State Key Laboratory of Structural Analysis of Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, P. R. China |
| |
| Abstract: | An implicit algorithm of Bi-penalty approximation with orthogonality projection for the numerical simulation of Bingham fluid flow problems is proposed in this paper.A Newton fluid flow with two kinds of artificial viscosit y subjected to the inequality constraint is introduced to approximate the Bingham fluid flow.This approach can effectively simulate the Bingham fluid flow with floating rigid cores or fixing rigid cores. |
| |
| Keywords: | Bingham fluid flow penalty orthogonality projection finite element |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《应用数学和力学》浏览原始摘要信息 |
|
点击此处可从《应用数学和力学》下载全文 |
