摘要
针对于定常的服从OldroydB型本构律的粘弹性流体流动建立了一种最小二乘混合有限元方法.应力、速度分别采用不连续分片k多次项式pk,连续分片k+1次多项式pk+1(k>0).分析了逼近问题的解的存在性并给出了逼近解的误差估计.
In the paper, we discuss the method of least - squares mixed finite element for steady state viscoelastic fluid flow. The approximate stress and velocity are respectively Pk discontinuous and Pk＋1 continuous. Existence and error estimates of the approximate solution are established.
出处
《怀化学院学报》
2006年第8期17-21,共5页
Journal of Huaihua University
基金
湖南教育厅青年项目资助(项目编号:05B022).
关键词
粘弹性流体流动
最小二乘混合有限元
一致三角剖分
viscoelastic fluid flow
least- squares mixed finite element
uniform triangrlar partitions
