It is fascinating that fish groups spontaneously form different formations. The collective
locomotions of two and multiple undulatory self-propelled foils swimming in a fluid are …

Fish schooling with stable configurations is intriguing. How individuals benefit from
hydrodynamic interactions is still an open question. Here, fish are modeled as undulatory …

Marine micro-organisms must cope with complex flow patterns and even turbulence as they
navigate the ocean. To survive they must avoid predation and find efficient energy sources …

A potential benefit of swimming together in coordinated schools is to allow fish to extract
energy from vortices shed by their neighbours, thus reducing the costs of locomotion. This …

Inertial swimmers use flexural movements to push water and generate thrust. We quantify
this dynamical process for a slender body in a fluid by accounting for passive elasticity and …

While hydrodynamic interactions for aggregates of swimmers have received significant
attention in the low Reynolds number realm (), there has been far less work at higher …

Fish swim by undulating their bodies. These propulsive motions require coordinated shape
changes of a body that interacts with its fluid environment, but the specific shape …

The collective hydrodynamics in fish schools and bird flocks, which includes self-
organization of multiple dynamic bodies, is complex and lacks sufficient exploration. In this …

Fish benefit energetically when swimming in groups, which is reflected in lower tail-beat
frequencies for maintaining a given speed. Recent studies further show that fish save the …

We present a numerical method for the simulation of collective hydrodynamics in self-
propelled swimmers. Swimmers in a viscous incompressible flow are simulated with a …