LAUSR

A slow laminar flame which is a thin (less than 1 mm thick) gas layer separating media of different densities is proposed as the interface between gaseous media for laboratory studies of Richtmyer-Meshkov and Rayleigh-Taylor instabilities. The potential of the proposed approach to produce the interface is shown by the example of shock wave interaction with a laminar flame in a lean hydrogen-air mixture (6 vol.% hydrogen). The development of Richtmyer-Meshkov instability at the interface between a heavy (cold) mixture and a light (hot) mixture was recorded by shadowgraphy.