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Title: A Newton-Krylov Solver for Implicit Solution of Hydrodynamics in Core Collapse Supernovae

Conference ·
; ;

This paper describes an implicit approach and nonlinear solver for solution of radiation-hydrodynamic problems in the context of supernovae and proto-neutron star cooling. The robust approach applies Newton-Krylov methods and overcomes the difficulties of discontinuous limiters in the discretized equations and scaling of the equations over wide ranges of physical behavior. We discuss these difficulties, our approach for overcoming them, and numerical results demonstrating accuracy and efficiency of the method.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
945528
Report Number(s):
LLNL-CONF-404711; TRN: US200903%%622
Resource Relation:
Journal Volume: 125; Conference: Presented at: SciDAC 2008, Seattle, WA, United States, Jul 13 - Jul 17, 2008
Country of Publication:
United States
Language:
English

References (17)

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Implicit general relativistic hydrodynamic methods for modeling the late-time explosion mechanism in core collapse supernovae journal May 1995

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Related Subjects

99 GENERAL AND MISCELLANEOUS
ACCURACY
EFFICIENCY
HYDRODYNAMICS
STARS
SUPERNOVAE