Abstract: A method for designing a microfluidic device includes steps of: a) receiving an input design of a bare microfluidic channel to which one or more cilia layers are to be added, the bare microfluidic channel having a predetermined cross section, the bare microfluidic channel defining an inner surface and an outer surface, a first direction being a fluid flow direction along a length of the bare microfluidic channel and a second direction perpendicular to the first direction; b) receiving operation parameters for a ciliated microfluidic channel formed from the bare microfluidic channel, the operation parameters including fluid viscosity and an opposing pressure gradient in an adverse direction to the fluid flow direction; and c) determining cilia design parameters for the one or more cilia layers to be attached to and distributed over the inner surface, the cilia design parameters being determined from the incompressible Brinkman equation.

Abstract: A velocimetry apparatus and method for the collection of target-specific images of fluid motions are disclosed. The apparatus includes a camera and a light source. The camera collects and provides images of the fluid showing instantaneous positions of particles in the fluid. The light source provides a light sheet (two-dimensional) or volume (three-dimensional) to illuminate the particles. The camera and the light source are powered by portable energy sources and measure instantaenous velocity of the fluid in a field of view. Shape and distance between first camera, the light source and the portable energy sources are so configured that the apparatus is a self-contained apparatus portable by a diver during operation thereof.

Abstract: A velocimetry apparatus and method for the collection of target-specific images of fluid motions are disclosed. The apparatus includes a camera and a light source. The camera collects and provides images of the fluid showing instantaneous positions of particles in the fluid. The light source provides a light sheet (two-dimensional) or volume (three-dimensional) to illuminate the particles. The camera and the light source are powered by portable energy sources and measure instantaenous velocity of the fluid in a field of view. Shape and distance between first camera, the light source and the portable energy sources are so configured that the apparatus is a self-contained apparatus portable by a diver during operation thereof.