Physical Principles of Ultrasonic Machining

Rozenberg, L. D.; Kazantsev, V. F.; Makarov, L. O.; Yakhimovich, D. F.

doi:10.1007/978-1-4899-4875-5_3

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…The second mechanism is observed, when small bubbles penetrate the pores and gaps between the contamination layer and the surface. Their vibration peels and tears off pieces of the contamination layer . However, both mechanisms cannot explain ultrasonic antifouling of a contaminant layer, which consists of individual particles rather than a film.…”

Section: Ultrasonic Antifouling Of Membrane Filtersmentioning

confidence: 99%

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Ultrasonic Mastering of Filter Flow and Antifouling of Renewable Resources

Radziuk

Möhwald

2016

ChemPhysChem

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Abstract:Inadequate access to purify water and sanitation requires new ergonomic methods at lower cost, less energy consumption, minimal use of chemicals and impact on the environment. Among them ultrasound is a unique means to control physics and chemistry of complex fluid (wastewater) with excellent performance in mass transfer, cleaning and disinfection. In membrane filtration processes it overcomes diffusion limits and can accelerate the fluid flow towards the filter preventing antifouling. Here we outline the current state of knowledge and technological design with the focus on physico-chemical strategies of ultrasound for water cleaning. We highlight important parameters of ultrasound for the delivery of fluid flow from a technical perspective employing principles of physics and chemistry. By introducing various ultrasonic methods involving bubbles or cavitation in combination with external fields we show advancements in flow acceleration and mass transportation to the filter. In most of them we emphasize the main role of streaming and impact of cavitation with a perspective to prevent and remove fouling deposits during the flow. We also elaborate on the deficiencies of present technology and on problems to be solved to achieve a wide spread application.

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Section: Ultrasonic Antifouling Of Membrane Filtersmentioning

confidence: 99%

“…According to the line‐lifting mechanism, cavitation bubbles can attack the edge of the gap between the contaminant film and the surface (Figure ). They can penetrate between the solid surface and the edge of the film and reside under the edge of the film (Figure A).…”

Section: Ultrasonic Antifouling Of Membrane Filtersmentioning

confidence: 99%

Ultrasonic Mastering of Filter Flow and Antifouling of Renewable Resources

Radziuk

Möhwald

2016

ChemPhysChem

View full text Add to dashboard Cite

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Physical Principles of Ultrasonic Machining

Cited by 1 publication

References 6 publications

Ultrasonic Mastering of Filter Flow and Antifouling of Renewable Resources

Ultrasonic Mastering of Filter Flow and Antifouling of Renewable Resources

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