A hybrid ADI-RPIM scheme for efficient meshless modeling

Summary form only given, as follows. This paper describes a novel hybrid technique where the leapfrog ADI-RPIM is applied to computational regions with dense nodal distributions and the original RPIM is applied to coarse regions. As a result, memory usage and CPU time of a meshless modeling is optimized without need of temporal interpolation to synchronize different time steps of different regions. In addition, late time instability or reflection from region interface is not found.