Abstract: A nozzle assembly for generating cavitation includes an inlet nozzle having a first end and an opposing second end. The inlet nozzle further includes an inlet bore extending from the first end to the second end, the inlet bore defining a first cross-sectional area at the first end and a second cross-sectional area at the second end. The second cross-sectional area is less than the first cross-sectional area, such that the inlet bore is configured to decrease pressure in a fluid from the first end to the second end, thereby forming vapor pockets in the fluid. The nozzle assembly further includes an outlet nozzle having a first end and an opposing second end. An outlet bore extends from the first end to the second end, the outlet bore configured to receive fluid from the inlet bore.