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JCPHY
2016
41views more  JCPHY 2016»
9 years 11 months ago
On regularizations of the Dirac delta distribution
In this article we consider regularizations of the Dirac delta distribution with applications to prototypical elliptic and hyperbolic partial di↵erential equations (PDEs). We st...
Bamdad Hosseini, Nilima Nigam, John M. Stockie
JCPHY
2016
43views more  JCPHY 2016»
9 years 11 months ago
Mass-corrections for the conservative coupling of flow and transport on collocated meshes
Buoyancy-driven flow models demand a careful treatment of the mass-balance equation to avoid spurious source and sink terms in the non-linear coupling between flow and transport....
Christian Waluga, Barbara I. Wohlmuth, Ulrich R&uu...
JCPHY
2016
37views more  JCPHY 2016»
9 years 11 months ago
Immersed boundary smooth extension: A high-order method for solving PDE on arbitrary smooth domains using Fourier spectral metho
The Immersed Boundary method is a simple, efficient, and robust numerical scheme for solving PDE in general domains, yet it only achieves first-order spatial accuracy near embedd...
David B. Stein, Robert D. Guy, Becca Thomases