An explicit family of time marching procedures with adaptive dissipation control

作者：Soares Delfim Jr^*

来源：International Journal for Numerical Methods in Engineering, 2014, 100(3): 165-182.

DOI：10.1002/nme.4722

• time integration methods
• explicit analysis
• dissipation control
• stability
• accuracy
• dynamics

In this work, an explicit family of time marching procedures with adaptive dissipation control is introduced. The proposed technique is conditionally stable, second-order accurate, and has controllable algorithm dissipation, which adapts according to the properties of the governing system of equations. Thus, spurious modes can be more effectively dissipated and accuracy is improved. Because this is an explicit time integration technique, the new family is quite efficient, requiring no system of equations to be dealt with at each time step. Moreover, the technique is simple and very easy to implement. Numerical results are presented along the paper, illustrating the good performance of the proposed method, as well as its potentialities.

• 出版日期2014-10-19