Abstract: A hydrodynamic cavitation unit, disc, or producer for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit. The hydrodynamic cavitation unit, disc, or producer includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens within the hydrodynamic cavitation disc to a cross-sectional area of the inlet conduit is greater than or equal to about 1:1 upstream of a hydrodynamic cavitation promotion zone and constricts below about 1:1 within the hydrodynamic cavitation promotion zone. A cap is located downstream of the inlet conduit and upstream of the hydrodynamic cavitation producer. Related methods of manufacturing, apparatuses, systems, techniques, and articles are also described.

Abstract: A hydrodynamic cavitation unit for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit and may include an expansion chamber downstream of the inlet conduit. The hydrodynamic cavitation unit includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens to a cross-sectional area of the inlet conduit is about 1:1 in at least a first point in the body, less than 1:1 in at least a second point in the body, and greater than 1:1 in at least a third point in the body. The hydrodynamic cavitation unit may include a cap or a vortex unit including the cap. The vortex unit may extend into the expansion chamber. The at least one lumen may include a constriction relative to the inlet conduit.

Abstract: A hydrodynamic cavitation unit for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit and may include an expansion chamber downstream of the inlet conduit. The hydrodynamic cavitation unit includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens to a cross-sectional area of the inlet conduit is about 1:1 in at least a first point in the body, less than 1:1 in at least a second point in the body, and greater than 1:1 in at least a third point in the body. The hydrodynamic cavitation unit may include a cap or a vortex unit including the cap. The vortex unit may extend into the expansion chamber. The at least one lumen may include a constriction relative to the inlet conduit.

Abstract: A hydrodynamic cavitation unit for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit. The hydrodynamic cavitation unit includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens to a cross-sectional area of the inlet conduit is about 1:1. A ratio of a cross-sectional area of the hydrodynamic cavitation unit to the cross-sectional area of the inlet conduit is about 2:1. Each of the lumens may have a frustoconical or Venturi shape. Related apparatuses, systems, techniques, and articles are also described.