Non-reciprocity in fluidic networked systems

In fluid flow networks with soft walls, incorporating valves and other nonlinear elements gives rise to a wide range of unexpected behaviors absent in linear networks. These phenomena include counterintuitive effects where pushing against a valve can be more effective in driving fluid than pushing with it. In this talk, we present a theoretical framework for a fluid network system with multiple valves, focusing on how valve placement (introducing nonlinearity) and modes of actuation (energy injection) influence the system's overall dynamics. We will also discuss connections to experimental setups involving valves in soft tubes and explore parallels with biological flow networks, such as venous and lymphatic systems.