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Issue No.02 - March/April (2009 vol.11)

pp: 24-33

Ann S. Almgren , Lawrence Berkeley National Laboratory

John B. Bell , Lawrence Berkeley National Laboratory

Andy Nonaka , Lawrence Berkeley National Laboratory

Michael Zingale , Stony Brook University

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MCSE.2009.21

ABSTRACT

A common feature of astrophysical flows is that they typically span a broad range of length and time scales. Specialized numerical algorithms that exploit the relationships between these scales can significantly improve the efficiency of numerical simulations without loss of accuracy. In the case of highly subsonic flows, hydrodynamics algorithms that filter sound waves but retain both local and large-scale compressibility effects can give accurate and efficient solutions. The authors describe the process by which an understanding of the important processes in Type Ia supernovae is guiding the development of new algorithms to model these phenomena.

INDEX TERMS

computing mathematics, numerical analysis, partial differential equations, computing methodologies, simulation, modeling, visualization, applications, computer applications, physical sciences and engineering, astronomy

CITATION

Ann S. Almgren, John B. Bell, Andy Nonaka, Michael Zingale, "A New Low Mach Number Approach in Astrophysics",

*Computing in Science & Engineering*, vol.11, no. 2, pp. 24-33, March/April 2009, doi:10.1109/MCSE.2009.21REFERENCES