DOI

The Kardar-Parisi-Zhang model of non-equilibrium critical behaviour (kinetic surface roughening) with turbulent motion of the environment taken into account is studied by the field theoretic renormalization group approach. The turbulent motion is described by the stochastic Navier–Stokes equation with the random stirring force whose correlation function includes two terms that allow one to account both for a turbulent fluid and for a fluid in thermal equilibrium. The renormalization group analysis performed in the leading order of perturbation theory (one-loop approximation) reveals six possible types of scaling behaviour (universality classes). The most interesting values of the spatial dimension d = 2 and 3 correspond to the universality class of a pure turbulent advection where the nonlinearity of the Kardar-Parisi-Zhang model is irrelevant.
Original languageEnglish
Article number084009
Number of pages8
JournalPhysica Scripta
Volume95
Issue number8
DOIs
StatePublished - Aug 2020

    Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics

    Research areas

  • non-equilibrium critical behaviour8turbulent advection, renormalization group, surface roughening

ID: 60531487