title: What is certain and what is not so certain in our knowledge of Rayleigh-Taylor mixing?
abstract: Past decades significantly advanced our understanding of Rayleigh-Taylor (RT) mixing. We briefly review recent theoretical results and numerical modelling approaches and compare them with state-of-the-art experiments focusing the reader's attention on qualitative properties of RT mixing.
authors.affiliation: Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, Russia.
authors.forename: Sergei I
authors.initials: SI
authors.lastname: Anisimov
authors.forename: R Paul
authors.initials: RP
authors.lastname: Drake
authors.forename: Serge
authors.initials: S
authors.lastname: Gauthier
authors.forename: Evgeny E
authors.initials: EE
authors.lastname: Meshkov
authors.forename: Snezhana I
authors.initials: SI
authors.lastname: Abarzhi
keywords: Kolmogorov turbulence; Rayleigh–Taylor instability; group theory; high energy density plasmas; scaling invariance; turbulent mixing