Bingham流体数值模拟的双罚函数—正交投影的隐式求解方法

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基金项目: * 国家自然科学基金

An Implicit Solution of Bi-Penalty Approximation with Orthogonality Projection for the Numerical Simulation of Bingham Fluid Flow

State Key Laboratory of Structural Analysis of Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, P. R. China

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.
- Bingham流体 /
- 罚函数 /
- 正交投影 /
- 有限元
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.
- Bingham fluid flow /
- penalty /
- orthogonality projection /
- finite element

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