An Improved Time Integration Method Based on Galerkin Weak Form with Controllable Numerical Dissipation

An Information System Integration Method Based on Controllable Genetic Algorithm

The essential for an enterprise to construct an information system is to integrate the information system with the legacy system. We introduce a biological genetic controllable method into the process of information system integration, and apply self-adaptive genetic algorithm to simulate the process of information system integration. By controlling the original population and the transformatio...

A numerical method for solving nonlinear partial differential equations based on Sinc-Galerkin method

In this paper, we consider two dimensional nonlinear elliptic equations of the form $ -{rm div}(a(u,nabla u)) = f $. Then, in order to solve these equations on rectangular domains, we propose a numerical method based on Sinc-Galerkin method. Finally, the presented method is tested on some examples. Numerical results show the accuracy and reliability of the proposed method.

An Improved Numerical Integration Method for Flight Simulation

In this paper a modified form of Euler integration is described which, when applied to the six-degree of freedom flight equations, retains and enhances many of the advantages of AB-2 integration and at the same time eliminates the disadvantages. The scheme is based on the Euler integration formula, but with the state-variable derivative represented at the midpoint of each integration step. In t...

Non-linear observer design method based on dissipation normal form

Numerical Diffusion Control of a Space-Time Discontinuous Galerkin Method

Variations on space-time Discontinuous Galerkin (STDG) discretization associated to Runge-Kutta schemes are developed. These new schemes while keeping the original scheme order can improve accuracy and stability. Numerical analysis is made on academic test cases and efficiency of these schemes are shown on propagating pressure waves. AMS subject classifications: 52B10, 65D18, 68U05, 68U07