A New Low Mach Number Approach in Astrophysics

Author

Almgren, Ann S. ; Bell, John B. ; Nonaka, Andy ; Zingale, Michael

Author_Institution

Lawrence Berkeley Nat. Lab., Berkeley, CA

Volume

11

Issue

2

fYear

2009

Firstpage

24

Lastpage

33

Abstract

Astrophysical flows typically span a broad range of length and time scales. Specialized numerical algorithms can exploit the relationships between these scales and significantly improve the efficiency of numerical simulations without loss of accuracy. 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.

Keywords

Mach number; astronomical techniques; astronomy computing; astrophysical fluid dynamics; numerical analysis; supernovae; Type Ia supernovae; astrophysical flows; low Mach number approach; numerical algorithms; time scales; Acceleration; Astrophysics; Carbon; Computer simulation; Electrons; Explosions; Fires; Ignition; Numerical simulation; Temperature; applications; astronomy; computer applications; computing mathematics; computing methodologies; modeling; numerical analysis; partial differential equations; physical sciences and engineering; simulation; visualization;

fLanguage

English

Journal_Title

Computing in Science & Engineering

Publisher

ieee

ISSN

1521-9615

Type

jour

DOI

10.1109/MCSE.2009.21

Filename

4784393