【摘要】 文提出了非定常的热传导-对流方程的一种Petrov最小二乘混合有限元法.Petrov最小二乘混合有限元法可以回避Babu(?)ka-Brezzi条件的约束,使得有限元空间可以自由地选择并获得最优阶的误差估计.更多还原

【Abstract】 In this work,a Petrov least squares mixed finite element(PLSMFE)method for the non-stationary conduction convection problems is derived.The PLSMFE method could circumvent the constraint of Babu(?)ka-Brezzi condition so that the combination of finite element subspaces could be chosen freely and optimal order error estimates are obtained.更多还原