Abstract
The shock-cylinder interaction is important for understanding the mixing of fluids by impulsively accelerated material interfaces. The flowfield development is highly sensitive to the initial conditions, which can be difficult to fully characterize in experimental facilities. In this work, simulations based on experimental measurements are used to model the initial flowfield at the Los Alamos shocktube facility. While nominally two-dimensional, our simulations show the initial column has significant axial variation. These numerical solutions are then used as the initial conditions for three-dimensional simulations of the shock-cylinder interaction. A genuinely three-dimensional flowfield develops as a consequence of the initial, axial variation of the cylinder.
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