Date: | June 30, 2016 |
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Location: | DC 1331 |
Time: | 11:30 |
Chair: | Stephen Mann |
Date: | July 7, 2016 | July 14, 2016 | July 21, 2016 | July 28, 2016 |
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Location: | DC 1331 11:30 | DC 1331 11:30 | DC 1331 11:30 | DC 1331 11:30 |
Chair: | Xiang Fang |
Leon Nanyi Jian |
Craig Kaplan |
Marta Kryven |
Technical Presentation: | Bill Cowan |
Xiang Fang |
Leon Nanyi Jian |
Craig Kaplan |
Christopher Batty |
Title : Solving the Poisson equation accurately on quadtree grids
Abstract: I will talk about some recent work I've been doing on using adaptive quadtree grids to solve Poisson problems, using a finite volume approach. I'll summarize related methods, and then explain a new approach that achieves 2nd order accuracy for both solution values and their gradients on arbitrary quadtrees. The central idea is to use a new diagonal (i.e., non-axis-aligned) construction for interpolating the"ghost" values needed to provide accurate discrete gradient and divergence operators near complex T-junction configurations that arise in quadtrees. |
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