Lorenz curves of bubble size distributions and their Gini coefficients characterize demixing processes. Through a systematic size classification, bubble size histograms are generated and investigated concerning their statistical entropy. It turns out that the temporal development of the entropy is preserved although characteristics of the histograms like number of size classes and modality are ...

Although thermoplastics possess many desirable traits as solidified materials, they are combustible and burn readily. Post burning samples of polymethylmethacrylate (PMMA) the focus this study. During flame spread, PMMA forms a bubble containing molten surface layer that influences spread rate mass efflux. This study examines formation distribution bubbles inside sample has previously been subj...

This study presents a computational fluid dynamics (CFD) model of an aerated wastewater treatment oxidation ditch, taking into account gas-liquid flow, oxygen mass transfer and dissolved oxygen. Especially, the effect bubble size distribution (BSD) biochemical demand (BOD) on (DO) has been considered. Species transport modelling predicts DO BOD distribution. De-oxygenation local by is modelled ...