Goswami, PrashantBatty, Christopher2017-05-052017-05-052014http://dx.doi.org/10.2312/egsh.20141011http://hdl.handle.net/10012/11857This is the accepted version of the following article: Goswami, P., & Batty, C. (2014). Regional Time Stepping for SPH, which has been published in final form at https://doi.org/10.2312/egsh.20141011. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [http://olabout.wiley.com/WileyCDA/Section/id-820227.html].This paper presents novel and efficient strategies to spatially adapt the amount of computational effort applied based on the local dynamics of a free surface flow, for classic weakly compressible SPH (WCSPH). Using a convenient and readily parallelizable block-based approach, different regions of the fluid are assigned differing time steps and solved at different rates to minimize computational cost. We demonstrate that our approach can achieve about two times speed-up over the standard method even in highly dynamic scenes.enFoamMaterial Point MethodParticle ResamplingTearingShear ThinningShear ThickeningViscoplasticityArticle