The role of mixing in astrophysics

D. Arnett

Research output: Contribution to journalReview articlepeer-review

136 Scopus citations


The role of hydrodynamic mixing in astrophysics is reviewed, emphasizing its connections with laser physics experiments and inertial confinement fusion. Computer technology now allows us to use two-dimensional simulations, with complex microphysics, of stellar hydrodynamics and evolutionary sequences, and it holds the promise of simulations in three dimensions. Careful validation of astrophysical methods by laboratory experiment, by the critical comparison of numerical and analytical methods and by observation are necessary for the development of simulation methods with reliable predictive capabilities. The recent and surprising results from isotopic patterns in presolar grains, from two-dimensional hydrodynamic simulations of stellar evolution, and from laser tests and computer simulations of Richtmeyer-Meshkov and Rayleigh-Taylor instabilities will be discussed in relation to stellar evolution and supernovae.

Original languageEnglish (US)
Pages (from-to)213-217
Number of pages5
JournalAstrophysical Journal, Supplement Series
Issue number2
StatePublished - Apr 2000


  • Hydrodynamics
  • Methods: numerical
  • Nuclear reactions, nucleosynthesis, abundances
  • Stars: interiors

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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