Identification, characterization and evolution of non-local quasi-Lagrangian structures in turbulence

摘要: The recent progress on non-local Lagrangian and quasi-Lagrangian structures in turbulence is reviewed. structures, e.g., vortex surfaces viscous flow, gas-liquid interfaces multi-phase flame fronts premixed combustion, can show essential following properties, but they are able to have topological changes the temporal evolution. In addition, represent or influence turbulent flow field. challenges for investigation of include their identification, characterization, improving understanding expected be helpful elucidate crucial dynamics develop structure-based predictive models turbulence.