An Implicit Solution of Bi-Penalty Approximation with Orthogonality Projection for the Numerical Simulation of Bingham Fluid Flow
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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.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.
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Key words:
- Bingham fluid flow /
- penalty /
- orthogonality projection /
- finite element
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