Ezequiel Médici, Michigan Technological University

Alexandre Martin, University of Kentucky

The study of heat and mass transport in gas-particle flows at high subsonic and supersonic speeds has implications for a variety of applications such as ablation, volcanic ash plumes, ballistics, combustion, and fragmentation of meteors, among others. Yet, characterizing the heat and mass transport occurring within the gas-particle cloud presents many numerical modeling and experimental measurement challenges. Numerical modeling challenges arise due to the small integration time step and spatial grid resolution when compared to the time scale and size of the whole cloud, which is needed to accurately capture the heat and flow dynamics at the particle size level. In some applications, the resolution needed is beyond existing computational capabilities, and alternative volume averaging methods have been proposed. Another modeling challenge comes from the lack of fundamental knowledge about the transport mechanism controlling the different transport processes at the sub-millimeter scale at high subsonic and supersonic speeds. For instance, the formation of standing shock waves, non-linear heat transfer, material strength, and shuttering are yet to be fully explored. The aim of this symposium is to present recent advances in numerical modeling and experimental observation of gas-particle flows s at high subsonic and supersonic speeds.

Keywords: material systems, fluid mechanics