title: Direct numerical simulation of turbulent mixing.
abstract: The results of three-dimensional numerical simulations of turbulent flows obtained by various authors are reviewed. The paper considers the turbulent mixing (TM) process caused by the development of the main types of instabilities: those due to gravitation (with either a fixed or an alternating-sign acceleration), shift and shock waves. The problem of a buoyant jet is described as an example of the mixed-type problem. Comparison is made with experimental data on the TM zone width, profiles of density, velocity and turbulent energy and degree of homogeneity.
authors.affiliation: RFNC-VNIIEF, 607188 Sarov, Nizhny Novgorod Region, Russia.
authors.forename: V P
authors.initials: VP
authors.lastname: Statsenko
authors.forename: Yu V
authors.initials: YV
authors.lastname: Yanilkin
authors.forename: V A
authors.initials: VA
authors.lastname: Zhmaylo
keywords: buoyant jet; direct numerical simulation; gravitational mixing; shear mixing; shock wave mixing; turbulent mixing