Hot-wire method for measurements of turbulent mixing induced by Richtmyer-Meshkov instability in shock tube

A constant temperature hot-wire anemometry method is applied to the study o f mixing zones induced by the interaction of a shock wave with Mach number 1.25 in air with air/helium (heavy/light), air/argon or air/krypton (light/ heavy) initially plane interfaces. The single wire gauge is positioned at v arious locations along the shock tube axis. At the present stage of our inv estigation, although the analysis of the hot-wire signal is not achieved ye t, we report the interesting concept of using hot-wire anemometry as a diag nostic method for shock tube studies of the Richtmyer-Meshkov instability. Based on this preliminary work. we discuss prospective experimental signal conversion, in order to provide some new results for this field of investig ation, in particular for resolving characteristics of the turbulent mixing zone which is of most interest.