The purpose of this paper is to propose a new algorithm for obtaining approximate solutions to the Burgers' equation (BE). Integration in time by a quadratic B-spline collocation method is shown. To the best of our knowledge, B-splines have not previously been used to integrate partial differential equations in both time and space. First, the BE is integrated using quadratic B-spline functions in time, and then the time-integrated BE is further solved in space via the cubic B-spline collocation method. The resulting recursive algebraic equation is used to obtain both shock wave and front propagation solutions of the BE, demonstrating the effectiveness of the space--time B-spline collocation method.
翻译:本文旨在提出一种求解Burgers方程近似解的新算法。研究展示了基于二次B样条配置法的时间积分过程。据我们所知,B样条方法此前尚未被用于偏微分方程的时空联合积分。首先采用二次B样条函数对Burgers方程进行时间积分,随后通过三次B样条配置法对时间积分后的方程进行空间求解。所得递归代数方程可用于获取Burgers方程的激波解与波前传播解,从而验证时空B样条配置法的有效性。