Engineering application that need high flow rate, let say >60 m/s

[markymark]

Is there any engineering application that need high velocity of flow, let say >60 m/s which uses small pipe/tube(smaller than 20 inch)
Pls provide some background information or web sites.

Regards
Markmark

 

[butelja]

Waterjet boat propulsion.

LARGE ornamental fountains, such as the one on the Mississippi River front in East St. Louis, IL. This fountain employs a number of 800 hp pumps putting out 400 PSIG pressure that is discharged through a single ~6" nozzle. It was designed to have a height of >600 ft. Depending upon weather conditions, it goes about that high. It tends to look more like a geyser or low cloud rather than a single well formed jet. The water falls to earth over a lake of several acres. A picture of it can be found at

http://www.eslarp.uiuc.edu/clips/orientation9708/image1.jpg