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History
Nozzle
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A nozzle is a device designed to control the direction or characteristics of a fluid flow as it exits an enclosed chamber or pipe.
A water nozzle
A water nozzle
A nozzle from the Ariane 5 rocket
A nozzle from the Ariane 5 rocket
Multiple large spiral nozzles (also known as pigtail nozzles) used in a scrubber application. Spiral nozzles typically have the largest free passage d
Multiple large spiral nozzles (also known as pigtail nozzles) used in a scrubber application. Spiral nozzles typically have the largest free passage design to help prevent clogging.
Mach number
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The Mach number, often only Mach, is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Czech physicist and philosopher Ernst Mach.
An F/A-18 Hornet creating a vapor cone at transonic speed just before reaching the speed of sound
An F/A-18 Hornet creating a vapor cone at transonic speed just before reaching the speed of sound