Fluidic devices exhibiting different hydrodynamic properties for the two different fluid flow directions.

In the forward direction, fluid passes through a fluidic diode easily, encountering very small hydraulic resistance (dissipance). In the other, reverse direction the resistance is high. When supplied with an alternating fluid flow, this difference in properties results in the fluidic rectification effect. The simplest way how to obtain the diode properties is to use a moving component blocking the available flowpath in one of the two directions. More robust, easier to make, and capable operating at a higher frequency are no-moving-part diodes.

 Valve-Less Rectification Pumps

 Fluidic Rectification