A viscous vortex single-mode bubble evolution model of Rayleigh Taylor instability and its numerical study
by Xu Zhang; Jinhong Liu
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 13, No. 1, 2013

Abstract: This paper has developed a viscous single-mode bubble evolution model of Rayleigh Taylor Instabilities (RTIs), which is an extension of the single-mode potential models of Jacobs and Rikanati. The viscous vortex model explained the viscous effects of its early stage of RTI development for low Atwood number flow. Furthermore, direct numerical simulations of RTI are studied with Navier-Stokes equations and a transport-diffusive equation. Agreement between the theoretical model and the numerical results shows that simulations of these instabilities are feasible using the mathematical miscible fluid model simulating RTI.

Online publication date: Thu, 31-Oct-2013

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