Richtmyer-Meshkov instability induced by shock-bubble interaction: Numerical and analytical studies with experimental validation

Jérome Giordano (1) , Y Burtschell

1 IUSTI - Institut universitaire des systèmes thermiques industriels

This paper deals with the numerical study of the interaction of a shock wave and a bubble. The three different density ratio cases between air and bubble are investigated: light/heavy, heavy/light and close density. The numerical simulations are compared to the experiments of Layes et al. Phys. Rev. Lett. 91, 17 2003. These three cases may allow us to better understand the vortex deposition by the baroclinic terms. Moreover, the behavior differences between the deformation of a bubble and a cylinder collided by a shock wave are shown. An analytical approach to evaluate the final volume of an inhomogeneity submitted to a shock wave interaction is also presented and discussed.

Domaines: Milieux fluides et réactifs; Biomécanique [physics.med-ph]; Mécanique des fluides [physics.class-ph]

Jérome Giordano, Y Burtschell. Richtmyer-Meshkov instability induced by shock-bubble interaction: Numerical and analytical studies with experimental validation. Physics of Fluids, 2006, 18, pp.36102 - 36102. ⟨10.1063/1.2185685⟩. ⟨hal-01446828⟩