Year: 2012
Type: conference-paper
Abstract: We present an experimental and numerical study of post-shock evolution of gas initially seeded with small droplets or particles.In two-phase media with gas being the embedding phase occupying most of the volume, shock acceleration can lead to vortex formation.The physical mechanism responsible for the vorticity deposition in this case is different from that of Richtmyer-Meshkov instability that would emerge on a gas-gas density interface.After the shock passage, the particles or droplets lag behind the surrounding gas.Momentum exchange between the embedded phase and the embedding phase leads to non-uniform local equilibrium velocity distribution, and thus to shear and vortex formation.Here we investigate shock interaction with a cylindrical particle-seeded column (with and without reshock).
Source: AIP conference proceedings
DOI: 10.1063/1.3686603
Authors: Peter Vorobieff, Michael Anderson, Joseph Conroy, Ross White, C. Randall Truman, Sanjay Kumar
Institutions: University of New Mexico, The University of Texas System
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G6541015203, G901232954
OpenAlex ID: W1992966832