Recent content by Andreas Gjestvang

(1) The plan was testing nozzles with three different lengths: 3 mm, 10 mm and 20 mm. In the product the nozzles is being used, the material thickness is 20 mm. We wanted to test how the nozzle length would affect the efficiency with the lengths described above. Because of design issues in our...

Thanks! Another thing i forgot to say: The water pressure on the nozzle inlet is 200 bar, and we are discharging it into air with atmospheric pressure.

Thanks! By the way, do you know any good litterature about this subject, essentially about smaller diameter fluid streams or nozzles? Andreas

EDIT: The average speed for nozzle 1 is 120 m/s The average speed for nozzle 2 is 137 m/s The average speed for nozzle 3 is 159m/s Also, the water is flowing from left to rigth, with the small diameter bore as an input. So it is resonable that increased shear will increase the speed out of the...

Hello! We are 3 students working on a bachelor thesis rigth now, with the purpose to determine the efficiency for different nozzle designs. We have done several practical tests, where we have logged the water pressure and the flow out from the nozzle, and calculated the nozzle efficiency based...