| Line 10: | Line 10: | ||
<li>automatic deactivation of quiescent regions; and</li> | <li>automatic deactivation of quiescent regions; and</li> | ||
| − | <li>unstructured grids with cartesian cores or embedded cartesian grids.</li> | + | <li>unstructured grids with cartesian cores or embedded cartesian grids.</li></ul> |
| − | The results from several examples demonstrate that speedup factors of 1:4 are attainable without compromising the accuracy of the traditional FCT schemes. | + | The results from several examples demonstrate that speedup factors of 1:4 are attainable without compromising the accuracy of the traditional FCT schemes. |
==Full Document== | ==Full Document== | ||
<pdf>Media:Draft_Samper_712506882_6753_fld.1598.pdf</pdf> | <pdf>Media:Draft_Samper_712506882_6753_fld.1598.pdf</pdf> | ||
Revision as of 15:47, 1 July 2020
Abstract
Several explicit high‐resolution schemes for transient compressible flows with moving shocks are combined in such a way so as to achieve the highest possible speed without compromising accuracy. The main algorithmic changes considered comprise the following:
- replacing limiting and approximate Riemann solvers by simpler schemes during the initial stages of Runge–Kutta solvers, and only using limiting and approximate Riemann solvers for the last stage;
- automatically switching to simpler schemes for smooth flow regions;
- automatic deactivation of quiescent regions; and
- unstructured grids with cartesian cores or embedded cartesian grids.
The results from several examples demonstrate that speedup factors of 1:4 are attainable without compromising the accuracy of the traditional FCT schemes.
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Published on 01/01/2008
DOI: 10.1002/fld.1598
Licence: CC BY-NC-SA license
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