Abstract:

In order to attain the proper size matching the oscillating cavity of the full-size pulsed jet nozzle, this paper, having made an optimization of the full-size pulsed jet nozzles, obtains the four optimum matching sizes. The power of the optimum full-size pulsed jet nozzle is 1.5 times that of the ordinary ones of the same size. The washing sand brick experiments show that the above optimum study is reliable.

Key words: Bit mozzle, Hydraulic jetting laboratory testing, Parameter optimum