Hydrodynamic rotary heating of the device and the liquid occurs in the zone farthest from the axis of rotation at an increased pressure created during the rotation of the multilayer volume of the liquid. During the operation of the rotor, the vapor-generating liquid turns into a multilayer ring, rotates with a steam funnel inside and, due to the higher rotation speed of the rotor, is intensively pumped into the working gap and heats up to temperatures exceeding the normal boiling temperature. The liquid displaced from the layer rises to the interface due to the difference in density and inertia of motion, expands into rotating small layers and rings.
Then the superheated liquid boils, vapor bubbles are separated at the interface, creating a product flow, while the temperature of the ascending liquid flows decreases due to expansion and boiling at reduced pressure and cooling by counter descending flows. Under the action of rapid compression in the flow, the bubbles collapse with the release of additional heat, which is added to the heat obtained due to friction with structural elements, while increasing the heating efficiency (mixing or disinfecting) water. In addition, as a result of the collapse of cavitation bubbles, high-amplitude energy impulses appear, accompanied by hydraulic shocks with a duration of several nanoseconds and the concentration of the energy of such impulses in discrete local working zones of nanometer sizes, as well as the association (synthesis) of water molecules.