Accession Number : ADP014801


Title :   New Type of the Interface Evolution in the Richtmyer-Meshkov Instability


Descriptive Note : Progress rept.


Corporate Author : CENTER FOR TURBULENCE RESEARCH STANFORDCA


Personal Author(s) : Abarzhi, S I ; Herrmann, M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/p014801.pdf


Report Date : Dec 2003


Pagination or Media Count : 11


Abstract : When a shock wave passes an interface between two fluids with different values of the acoustic impedance, the misalignment of the pressure and density gradients results in a growth of the interface perturbations and causes the development of the Richtmyer- Meshkov instability (RMI) (Richtmyer 1960; Meshkov 1969). The instability produces with time the turbulent mixing of the fluids, which controls many physical and technological processes, such as inertial confinement fusion, supernova explosion, and impact dynamics of liquids (Kull 1991). Reliable description of the turbulent mixing is the basic objective of studies of RMI (Kull 1991; Schneider et al. 1998).


Descriptors :   *FLUID FLOW , DENSITY , SHOCK WAVES , TURBULENT FLOW , PERTURBATIONS , INSTABILITY , ACOUSTIC IMPEDANCE


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE