Title
Multiscale cell-based coarsening for discontinuous problems
Abstract
Whether tracking the eye of a storm, the leading edge of a wildfire, or the front of a chemical reaction, one finds that significant change occurs at the thin edge of an advancing line. The tracking of such change-fronts comes in myriad forms with a wide variety of applications expressible as PDEs. Expanding on Ami Harten's ideas, we construct an alternative to wavelet-based grid refinement, a multiresolution coarsening method that is capable of capturing sharp gradients across different scales, thus improving PDE-based simulations by concentrating computational resources where the solution varies sharply. We present this alternative grid coarsening method and compare its performance to other multiresolution methods by means of several examples.
Year
DOI
Venue
2009
10.1016/j.matcom.2007.06.011
Mathematics and Computers in Simulation
Keywords
Field
DocType
thin edge,grid refinement,chemical reaction,42c40,multiresolution analysis,leading edge,65m50,discontinuous problem,generalized wavelets,wavelet-based grid refinement,multiresolution method,applications expressible,multiresolution coarsening method,ami harten,pde-based simulation,alternative grid
Mathematical optimization,Multiresolution analysis,Leading edge,Mathematics,Grid,Wavelet
Journal
Volume
Issue
ISSN
79
6
Mathematics and Computers in Simulation
Citations 
PageRank 
References 
0
0.34
7
Authors
2
Name
Order
Citations
PageRank
Alfonso Limon112.58
Hedley Morris202.03