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Interface-resolved simulations of multiphase turbulent flows: Achievements and new challenges

Event Type: 
Date and Time: 
Wednesday, August 10, 2022 - 16:00 to 17:30
Bishop Auditorium (1st Floor) 518 Memorial Way Stanford, CA 94305
Event Sponsor: 
Parviz Moin, Director of Center for Turbulence Research
Luca Brandt

In this tutorial, we offer an overview on the achievements and challenges of interface-resolved simulations of multiphase turbulent flows. The focus will therefore be on micro- and meso-scale simulations, needed to provide fundamental physical insights as well as quantitative information to large-scale models, e.g. LES and two-fluid Continuum models. We will first consider the case of rigid particles, which has probably seen the most significant achievements over the last decade, and where we believe resolved numerical simulations are a well-established tool. Secondly, we will consider two-fluid systems, whose dynamics is mainly governed by interfacial forces. In this case, different numerical tools have been successfully used to tackle different flow problems and we see the possibility to gain new fundamental  physical understanding at reach. Finally we will consider flows with heat and mass transfer: novel accurate and efficient numerical algorithms are being developed and more research is needed to establish those as reliable research tools in a field where laboratory experiments are more difficult and provide more limited information. A number of recent studies will be presented to highlight the recent advances while still presenting the main challenges we see ahead of us.

Presentation: Video