Master thesis and internship[BR]- Master's thesis : Investigation of the transition to turbulence on a flat-plate boundary layer at supercritical pressure[BR]- Integration Internship : Delft University of Technology

Abstract

The secondary instability of boundary layer flows with fluids in their thermodynamic supercritical region. Above certain conditions of pressure and temperature, fluids reach a supercritical state where the distinction between liquid and gas phases does not exist any longer. The transition to turbulence of such fluids is a very active topic of research. Yet, the physical mechanism of transition are still largely unexplored. We recently carried out a linear stability analysis (LSA) of supercritical CO2 developing over a flat plate. A new unstable mode was discovered, different from that of the boundary layer of an ideal fluid.