摘要
应用有限元方法数值求解流体力学或其他工程技术问题,通常所得n阶代数方程组具有线性和对称的性质.当方程组中有任意n_0(2≤n_0≤n)个待定变量为一组线性约束时,为解除这一约束,则可使用本文提供的数学处理方法,使原先n阶线性、对称的方程组在解除上述线性约束条件后,方程组的阶次不变,而且仍具有线性、对称的性质.
In general,using the finite element method to solve the numerical problems in fluid mechanics or in other engineering problems, the nth order algebraic simultanuous equations with linear and symmetrical property can be formed. When n_0(2≤n_0≤n)variables in that equation system are limited by a set linear constrained conditions, and if these conditions were released. The mathematical treatment method presented in this paper can be used to make the original equation system maintain its order and its linear and symmetrical property.
关键词
计算方法
数值方法
计算
流体力学
Computational method
Numerical method
Computational fluid mechanics
