Presentation Details
Computational multiscale methods for turbulent single- and two-phase flows
Thursday, 12 Oct 2017; 09:15 - 09:45 in room 7.02
In Session:
PL04: Plenary Lectures
Thursday, 12 Oct 2017; 08:30 - 10:00 in room 7.02
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1st and presenting Author
Ursula Rasthofer
Germany
Germany
Micro Abstract:
Variational multiscale methods for LES of turbulent single- and two-phase flows are presented. To recover the subgrid-scale velocity, multifractal scale similarity in the enstrophy field of turbulent flow is exploited. The extended finite element method allows for sharply representing discontinuities at the interface of two-phase flow on a fixed grid. Various numerical examples, ranging from turbulent flow past a backward-facing step to turbulent bubbly channel flow, illustrate the methods.