Transport in Fluid Flow
Porous Media
Local correlations of flow across pore junction predict overall flow distribution and transport. Thereby they map a local porous media architecture to global transport properties.
- Dispersive transport dynamics in porous media emerge from local correlations.
Felix Meigel, Thomas Darwent, Leonie Bastin, Lucas Goehring, and Karen Alim,
[Nat. Comm. 2022] [PDF] - Avoiding air bubbles when filling microfluidic chips by use of an ultrasonic bath.
Leonie Bastin and Karen Alim,
[Lab on a Chip Blog 2021] - Local pore size correlations determine flow distributions in porous media.
Karen Alim, Shima Parsa, David A. Weitz, and Michael P. Brenner,
[Phys. Rev. Lett. 2017] [PDF]
Supply
Uptake kinetics, molecular diffusion and flow based advection compete to control supply via molecule uptake from fluid streaming through veins.
- Controlling effective dispersion within a channel with flow and active walls.
Sophie Marbach and Karen Alim,
[Phys. Rev. Fluids 2019] [arXiv 2019] [PDF] - Flow rate of transport network controls uniform metabolite supply to tissue.
Felix J. Meigel and Karen Alim,
[Roy. Soc. Interface 2018] [PDF]
Network Peristalsis
Fluid volume conversations constrains generalization of peristaltic contractions to flow networks.
- Flow modes provide a quantification of Physarum network peristalsis.
Ryan Wilkinson, Matthieu Koziol, Karen Alim, and Marcus Roper,
[Fungal Ecol. 2023] [PDF] - Random network peristalsis in Physarum polycephalums organizes fluid flows across an individual.
Karen Alim*, Gabriel Amselem*, François Peaudecerf, Michael P. Brenner, and Anne Pringle,
[Proc. Natl. Acad. Sci. 2013] [PDF]