Low Mach Number Modeling of Stratified Flows

  • Ann Almgren
  • John Bell
  • Andrew Nonaka
  • Michael Zingale
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 77)

Abstract

Low Mach number equation sets approximate the equations of motion of a compressible fluid by filtering out the sound waves, which allows the system to evolve on the advective rather than the acoustic time scale. Depending on the degree of approximation, low Mach number models retain some subset of possible compressible effects. In this paper we give an overview of low Mach number methods for modeling stratified flows arising in astrophysics and atmospheric science as well as low Mach number reacting flows. We discuss how elements from the different fields are combined to form MAESTRO, a code for modeling low Mach number stratified flows with general equations of state, reactions and time-varying stratification.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Ann Almgren
    • 1
  • John Bell
    • 1
  • Andrew Nonaka
    • 1
  • Michael Zingale
    • 2
  1. 1.Lawrence Berkeley National LaboratoryBerkeleyUSA
  2. 2.Stony Brook UniversityStony BrookUSA

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