FlowNozzle
FlowNozzle is a class of adjustable-flow nozzles used in fluid dynamics research and process engineering. It combines a converging-diverging channel with a variable throat, enabling precise control of velocity, pressure drop, and flow profile. The device is designed for subsonic operation and compatibility with liquids and gases across a range of pressures.
The core feature is a throat whose effective diameter is changed by an actuator, allowing rapid adjustments
Operating principle: flow through the nozzle creates a calibrated pressure drop that relates to volumetric flow
Applications: FlowNozzles are used for precision metering in research rigs, CFD model validation, spray and injector
History and status: the concept emerged in fluid dynamics literature in the 2010s as a flexible alternative