Speaker
Description
The past decade has witnessed a paradigm shift in our understanding of Ostwald ripening within confined geometries. In late 2016, experimental groups at Stanford and UT-Austin independently observed a counterintuitive phenomenon: gas bubbles in porous media exhibited self-regulated coarsening, converging toward a uniform curvature distribution rather than unlimited growth. In the end of 2017, we published the first paper revealing its microscopic mechanism (Xu et al., PRL, 2017) that porous structure reshapes capillary pressure – volume correlation of bubbles and regulates mass transfer direction based on microfluidic experiments. Almost at the same time, Sally Benson group published their micro-CT observation of similar phenomena and constructed a pore-network-modelling (PNM) code to reproduce this phenomenon ( de Chalendar et al., JFM, 2018). These two seminal studies, initially motivated by CO₂ subsurface sequestration, catalyzed over 100 subsequent investigations spanning experimental characterization, theoretical modeling, and computational simulation in the past decade.
A few years later, Martin Blunt's group established its critical role in subsurface hydrogen storage through integrated coreflood experiments and micro-CT analysis. More recently, researchers at Princeton revealed its applicability to intracellular phase separation, providing a physicochemical basis for the formation of functional biomolecular condensates. The past five years have seen exponential growth in the literature, driven by advances in thermodynamic theory, experimental generalization across multiple length scales, and extension to diverse applications.
In this talk, we aim to summarize the research on Ostwald ripening in porous media in the past 10 years, and analyze some key scientific questions yet to answer in future study.
| Country | China |
|---|---|
| Green Housing & Porous Media Focused Abstracts | This abstract is related to Green Housing |
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