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Title: An adaptive multiblock high-order finite-volume method for solving the shallow-water equations on the sphere

We present a high-order finite-volume approach for solving the shallow-water equations on the sphere, using multiblock grids on the cubed-sphere. This approach combines a Runge--Kutta time discretization with a fourth-order accurate spatial discretization, and includes adaptive mesh refinement and refinement in time. Results of tests show fourth-order convergence for the shallow-water equations as well as for advection in a highly deformational flow. Hierarchical adaptive mesh refinement allows solution error to be achieved that is comparable to that obtained with uniform resolution of the most refined level of the hierarchy, but with many fewer operations.
Authors:
 [1] ;  [2] ;  [1] ;  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Computational Research Div.
  2. Univ. of California, Davis, CA (United States). Dept. of Land, Air and Water Resources
Publication Date:
OSTI Identifier:
1236078
Report Number(s):
LBNL--183366
Journal ID: ISSN 1559-3940; ir:183366
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Communications in Applied Mathematics and Computational Science
Additional Journal Information:
Journal Volume: 10; Journal Issue: 2; Journal ID: ISSN 1559-3940
Publisher:
Mathematical Sciences Publishers
Research Org:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Computational Research Division
Sponsoring Org:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING