对 Bingham流体给出了罚函数逼近和正交投影的隐式求解方法 ,把 Bingham流体处理为粘塑性体 ,利用对粘塑性体的求解 ,在有限元法的实施中 ,采用了减缩和选择积分技术以克服压力的“自锁”问题 ;使用一维变带宽存储的 Pre-Bi-CG法和 Newton-Raphson方法求解非对称的非线性方程组 ;在时间域内使用无条件稳定的后 Euler时间积分格式 ,有效地模拟了 Bingham流体的流动问题 The Bingham fluid is given an implicit solution to the penalty function approximation and orthogonal projection. The Bingham fluid is treated as a viscoplastic body. With the solution of viscoplastic body, the finite element method is used to reduce and select the integral Technology to overcome the “self-locking” problem of pressure; the use of one-dimensional variable bandwidth storage Pre-Bi-CG method and Newton-Raphson method to solve asymmetric nonlinear equations; in the time domain unconditional stability of the post-Euler time integral format , Effectively simulating the Bingham fluid flow problem