Oleg V. KozyukScientific archive

The research archive of Dr. Oleg V. Kozyuk

Cavitation.
From science
to application.

Explore the physics, engineering and industrial potential of hydrodynamic cavitation. A growing library of technical knowledge, grounded in research.

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Research · Invention · Process engineering

Conceptual hydrodynamic cavitation flow Liquid flow passes through a constriction. A low-pressure region forms a growing cavity before pressure recovery causes collapse downstream.
Conceptual flow illustrationPressure reduction, cavity growth, and recovery shown as a schematic; not a measurement or simulation.

Equipment in practice

From bench to production.

AI-enhanced illustrations drawn from Dr. Oleg V. Kozyuk’s equipment photographs, alongside his descriptions of the reactors, processors, and mixers.

AI-enhanced illustration: A row of stainless-steel vegetable oil degumming cavitation reactors and motors on rectangular skids in a workshop.
Production reactors

Vegetable oil degumming cavitation reactors.

Source description by Dr. Oleg V. Kozyuk

AI-enhanced illustration · © Crux Experts LLCView original

Refer to the original photograph for equipment details.

AI-enhanced illustration: CaviMax 22 bench processor with a stainless-steel feed funnel, recirculation pipe, pressure gauge, valves, and metal base.
CaviMax 22

Bench recirculation cavitation processor CaviMax 22: 1,000 PSI, 2.4 GPM.

Source description by Dr. Oleg V. Kozyuk

AI-enhanced illustration · © Crux Experts LLCView original

Refer to the original photograph for equipment details.

AI-enhanced illustration: Cylindrical stainless-steel CaviFlo static cavitation mixer with clamped connections and small side ports.
CaviFlo

Industrial static cavitation mixer CaviFlo: 100 PSI, 100 GPM.

Source description by Dr. Oleg V. Kozyuk

AI-enhanced illustration · © Crux Experts LLCView original

Refer to the original photograph for equipment details.

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Cavity cycle A conceptual sequence of pressure reduction, cavity growth, and pressure recovery.

Fundamentals

The physics of inception, cavity growth, collapse and energy transfer.

Understand the mechanisms
Flow constriction A conceptual fixed-geometry flow path with a focused low-pressure zone.

Reactors & equipment

Flow geometry, reactor design and the engineering of controlled cavitation.

Explore the technology
Process transfer A conceptual process route from feed through treatment to measured output.

Industrial applications

From food and fermentation to wastewater, fuels and material processing.

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The publication library

Research worth
looking into.

Technical publications with figures, equations and references kept in context.

Browse all 11 publications

  1. Published

    Chapter 5. Hydrodynamic Cavitation Technological Equipment

    Hydrodynamic cavitation equipment is intentionally designed to create and then terminate low pressure regions in a liquid stream. This objective distinguishes process cavitators from pumps, valves, propellers, and hydraulic machinery in which cavitation is normally an unwanted cause of erosion, noise, vibration, and performance loss. In a process reactor, the pressure time history is selected so that bubble collapse, microjets, shock waves, interfacial renewal, and high local strain rates can be used for mixing, emulsification, cell disruption, extraction, oxidation, crystallization, heating, and other transformations [3-6,36].

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  2. Published

    Chapter 4. Cavitation in Hydraulic Machinery, Valves, Piping, and Marine Systems

    A centrifugal pump converts shaft work into fluid head through a rotating impeller and stationary casing or diffuser. The most familiar cavitation location is the impeller eye and blade leading edge, where relative velocity is high and pressure is low. Other forms occur in tip leakage vortices, balance passages, wear ring clearances, inlet recirculation, discharge recirculation, blade wake interactions, and diffuser or volute regions. These mechanisms have different operating point dependencies and therefore require different remedies [1], [2].

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  3. Published

    Chapter 3. Single Bubble Collapse Phenomena, Models, and Thermodynamic Effects

    Cavitation is the formation and subsequent dynamics of vapor filled or gas vapor cavities in a liquid when the local pressure becomes sufficiently low. A single cavitation bubble is the simplest experimentally accessible unit of this process. It can be produced by a focused laser pulse, an electric discharge, a rapid pressure reduction, a tensile acoustic pulse, or localized heating. Once the pressure recovers, the surrounding liquid accelerates inward and the bubble collapses. The bubble is called a cavitation bubble rather than an ordinary gas bubble because a substantial part of its volume is normally created by vaporization of the liquid, even though permanent gas and products of the generation process may also be present.

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Behind the research

A career at the intersection
of physics and engineering.

Discover Dr. Oleg V. Kozyuk’s approach to hydrodynamic cavitation, industrial experience, patents and selected scientific work.

Meet the researcher