TY - JOUR T1 - Explicit Time-Stepping for Moving Meshes AU - Baines , M. J. JO - Journal of Mathematical Study VL - 2 SP - 93 EP - 105 PY - 2015 DA - 2015/06 SN - 48 DO - http://doi.org/10.4208/jms.v48n2.15.01 UR - https://global-sci.org/intro/article_detail/jms/9912.html KW - PDEs, moving meshes, time stepping, no tangling. AB -
In order to move the nodes in a moving mesh method a time-stepping scheme is required which is ideally explicit and non-tangling (non-overtaking in one dimension (1-D)). Such a scheme is discussed in this paper, together with its drawbacks, and illustrated in 1-D in the context of a velocity-based Lagrangian conservation method applied to first order and second order examples which exhibit a regime change after node compression. An implementation in multidimensions is also described in some detail.