Abstract
Bubbly gas-liquid flows represent a prototype of dispersed multiphase flow systems, which appear in many natural phenomena and industrial applications. It is of fundamental interest to understand how the dispersed elements in such systems interact with each other and the ambient fluid field, and the collective motion and induced turbulence that arise from these interactions. The special challenges of simulating bubbly flows are to follow the motion of deformable phase boundaries and to accurately account for the stress boundary conditions at the interfaces. A parallel version of a finite difference/front tracking method is used to perform direct numerical simulations of mono- and bidisperse bubble size distributions rising in a stagnant liquid. The Navier-Stokes equations are solved on a fixed, regular, three-dimensional grid, while the interfaces between the gas and the liquid are tracked by two-dimensional surface-fitted moving meshes.
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Göz, M.F., Bunner, B., Sommerfeld, M., Tryggvason, G. (2001). Simulation of Bubbly Gas-Liquid Flows by a Parallel Finite-Difference/Front-Tracking Method. In: Krause, E., Jäger, W. (eds) High Performance Computing in Science and Engineering 2000. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56548-9_25
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DOI: https://doi.org/10.1007/978-3-642-56548-9_25
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