Simulation technique for dynamic evaporation processes Original Research Article

A new higher-order hyperbolic scheme is proposed. This scheme is applicable simultaneously to compressible and incompressible fluids. A sharp interface of two fluids is described by one grid throughout computation. The code is applied to laser-induced evaporation dynamics and vapor explosions. Among fundamental processes in vapor explosions, two important models are tested. One is the interaction of a shock wave with a liquid drop and subsequent break-up of a drop. Another one is the collapse of a bubble near a wall. Although the liquid jet appears, the mushroom structure is created inside a bubble and this combined structure deforms the wall surface only in a simple topological way without mushroom structure.