TY - JOUR T1 - A Numerical Method for Solving the Variable Coefficient Wave Equation with Interface Jump Conditions AU - Wang , Liqun AU - Hou , Songming AU - Shi , Liwei AU - Zhang , Ping JO - International Journal of Numerical Analysis and Modeling VL - 1 SP - 1 EP - 17 PY - 2018 DA - 2018/10 SN - 16 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/ijnam/12791.html KW - Non-traditional finite element method, wave equation, jump condition, variable coefficient. AB -

Wave equations with interface jump conditions have wide applications in engineering and science, for example in acoustics, elastodynamics, seismology, and electromagnetics. In this paper, an efficient non-traditional finite element method with non-body-fitted grids is proposed to solve variable coefficient wave equations with interface jump conditions. Numerical experiments show that this method is approximately second order accurate both in the $L^∞$ norm and $L^2$ norm for piecewise smooth solutions.