Abstract Gas-liquid systems involving dispersed bubbly flows are often encountered in industry due to their favourable heat and mass transport characteristics. A key element of such systems involving interfacial mass transfer are the thin mass boundary layers prevailing at the phase boundaries. Resolving these thin boundary layers in numerical simulations is very challenging because of the need for very fine grids. Such grids often over-resolve the hydrodynamics which accounts for most of the CPU time. In this paper, we propose a multiple resolution approach that resolves the momentum boundary layers on a coarse (fixed) Cartesian grid and the mass boundary layers on a finer (adaptive) grid. The methodology proposed in Panda et al. (2019) for static rigid particles is extended to deformable moving interfaces and applied to single rising bubbles where the computed Sherwood number is compared with empirical correlations and numerical simulations available in literature.

中文翻译：

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一种在高施密特数可变形气液界面上使用自适应网格完全解析边界层的多分辨率方法

摘要 涉及分散气泡流的气液系统由于其良好的传热和传质特性在工业中经常遇到。这种涉及界面传质的系统的一个关键要素是相边界处的薄质量边界层。由于需要非常精细的网格，因此在数值模拟中解析这些薄边界层非常具有挑战性。此类网格通常会过度解析占 CPU 时间大部分的流体动力学。在本文中，我们提出了一种多分辨率方法，可以解决粗（固定）笛卡尔网格上的动量边界层和更精细（自适应）网格上的质量边界层。Panda 等人提出的方法。