Fluid-structure interactions in soft channel networks

Fluid-structure interactions in soft channels play a critical role in fluid flow control in plants and in the human brain and kidneys. While the properties of individual flexible channels are well-known, flow in interconnected or mechanically coupled pipe networks remain poorly understood.

To elucidate the basic modes of self-interacting channels, we study pressure-driven flow in a multi-layer fluidic device that contains two overlapping channels separated by an impermeable elastic membrane. 

This allows us to build networks of capacitors and non-linear resistors as models of biological systems. Implications for flow control in plant xylem is discussed and potential technical applications are outlined.