Techniques of Ultrasound Cavitation Control

Skvortsov, S. P.

doi:10.7463/0215.0759806

Cited by 4 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For each of these steps the radius of the bubble must exceed some critical value [50] . The dynamics of the bubble is affected by the action of acoustic pressure, hydrostatic pressure, pressure of the gas–vapor mixture inside the cavitation bubble, surface tension that cause the complicated dependence of bubble radius with time [51] . The dynamics of the cavitation bubble is described with the following Eq.…”

Section: Resultsmentioning

confidence: 99%

Characterization of transient cavitation activity during sonochemical modification of magnesium particles

Brezhneva

Дежкунов

Ulasevich

et al. 2021

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Characterization of transient cavitation activity during sonochemical modification of magnesium particles

Brezhneva

Дежкунов

Ulasevich

et al. 2021

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

“…Few researchers have addressed cavitation erosion in oil emulsions, hydraulic oils, etc. [60][61][62][63][64][65][66][67]. There are a number of theoretical and experimental studies on cavitation in relation to crude oil [64].…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Potential of Cavitation Erosion-Induced Heavy Crude Oil Upgrading

Baimukhametov,

Kayumov,

Dengaev

et al. 2023

Fluids

View full text Add to dashboard Cite

The application of ultrasonic waves in the processing of hydrocarbons is a new promising technology that has developed rapidly in recent years. However, the acoustic-induced cavitation erosion phenomenon is poorly studied. In this paper, a comparison study of cavitation erosion was carried out in water and oils with different viscosities produced from Ashal’cha and North Komsomol using an ultrasonic reactor operating at an industrial frequency of 20 kHz. The acoustic spectra obtained from hydrophones during the ultrasonic treatment of fluids can be characterized by using subharmonics of the main frequency and a continuous white noise level. Moreover, the cavitation erosion of aluminum foil under various ultrasound irradiation times and power levels was thoroughly investigated. It has been found that the process of ultrasonic cavitation has a less erosive impact on metal foil in oil due to its high viscosity. In addition, the formation of microflows in the oil phase, which also intensify the erosion process, is hindered. Cavitation erosion in the Ashal’cha oil sample exhibited a higher intensity compared to that in the North Komsomol oil sample. It was found that upon increasing ultrasound intensity in the case of the viscous (Ashal’cha) oil sample, cavitation stability was disrupted. In turn, this led to a reduction in the collapse energy of the cavitation bubbles. The results we obtained enable the assessment of cavitation erosion in crude oil and could be used to improve methodologies for monitoring and optimizing cavitation processes in crude oil.

show abstract

Promising technologies for pre-sterilization ultrasonic cleaning of medical devices for patient safety in physiotherapy and medical rehabilitation

Zaytseva,

Gerasimenko,

Evstigneeva

et al. 2023

Russian Journal of Physiotherapy, Balneology and Rehabilitation

View full text Add to dashboard Cite

Intensive introduction of innovative technologies into practice in order to improve the effectiveness of treatment and diagnostic measures and reduce the negative impact on the human body nevertheless contributes to the emergence of adverse events directly related to the provision of medical care. In the complex of anti-epidemic measures aimed at eliminating infection in medical organisations, a major role belongs to the correct organisation and performance of pre-sterilisation cleaning of medical devices. Technologies of processing of medical devices and pre-sterilisation cleaning should be convenient and safe to use, have no damaging effect on the processed items, be highly effective and at the same time not labour-intensive. Today cleaning with the use of ultrasonic units remains promising, with the help of which the standardisation of the treatment process is carried out, the influence of the human factor on the quality of cleaning is reduced, and the control of the main critical parameters of the process is carried out in automatic mode. The purpose of the work is to justify the need to maintain the safety of the patient and staff using the promising use of ultrasonic influences. The results of this literature review reflect information about the safety and effectiveness of the method of ultrasonic pre-sterilization cleaning of medical instruments used in physiotherapy and medical rehabilitation. Basic information is provided about the physical essence of the ultrasonic cleaning process, its effect on biological systems from the standpoint of physical, biological and chemical effects, which ensures the safety of manipulations and procedures in physiotherapy and medical rehabilitation.

show abstract

Techniques of Ultrasound Cavitation Control

Cited by 4 publications

References 17 publications

Characterization of transient cavitation activity during sonochemical modification of magnesium particles

Characterization of transient cavitation activity during sonochemical modification of magnesium particles

Unveiling the Potential of Cavitation Erosion-Induced Heavy Crude Oil Upgrading

Promising technologies for pre-sterilization ultrasonic cleaning of medical devices for patient safety in physiotherapy and medical rehabilitation

Contact Info

Product

Resources

About