Since typical industrial-scale reactors may contain many millions of bubbles, the extension of direct free-surface modelling techniques to resolve every bubble in the vessel would require far more computational power than will be available. A more immediate solution is to couple macro-scale reactor models to micro-scale models of individual bubbles and collections of a small number of bubbles. In this paper, a micro-scale modelling technique was presented and tested on the situation of a single rising bubble. The micro-scale model was based on the Volume-of-Fluid (VOF) technique combined with a dynamic mesh adaptation based on wavelet analysis to ensure a sufficient resolution at the gas-liquid interfaces. The method was based on a multi-block parallel scheme with mesh adaptivity facilitated by wavelet analysis embedded into a commercial CFD package CFX. Examples of the performance of the scheme for a bubble rising problem are given. © Springer-Verlag Berlin Heidelberg 2005.
CITATION STYLE
Liu, T., & Schwarz, P. (2005). Multiscale modelling of bubbly systems using wavelet-based mesh adaptation. In Lecture Notes in Computer Science (Vol. 3516, pp. 112–119). Springer Verlag. https://doi.org/10.1007/11428862_15
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