Results 31 to 40 of about 35,987 (205)

Ultrasonic cavitation in thin liquid layers

open access: yesUltrasonics Sonochemistry, 2005
The generation of ultrasonic cavitation in a thin liquid layer trapped between a large radiating surface and a hard reflector and bounded laterally by a gas-liquid interface is investigated. The theoretical analysis predicts that a large amplification of the acoustical pressure is obtained with this configuration.
Moussatov, A.   +2 more
openaire   +5 more sources

Method for calculating a cylindrical ultrasonic cavitation filter chamber with a regeneration effect

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2020
Introduction. The creation of modern ultrasonic cavitation equipment for filtering working fluids in various technological processes is associated with the study of the interaction of a liquid load with ultrasonic emitters, taking into account the ...
O. F. Luhovskyi   +6 more
doaj   +1 more source

Study on ultrasonic / hydraulic cavitation field for enhanced degradation of ceflor masonry in water [PDF]

open access: yesBIO Web of Conferences, 2022
Based on ultrasonic cavitation, with low concentration of levofloxacin hydrochloride solution and cavitation product analysis, the degradation rules of levofloxacin hydrochloride were studied by ultrasonic, zero valent iron and zero valence iron (US ...
Liu Yuanyuan, Shi Yahui
doaj   +1 more source

Intensification of oxidation capacity using chloroalkanes as additives in hydrodynamic and acoustic cavitation reactors [PDF]

open access: yes, 2008
The effect of the presence and absence of the chloroalkanes, dichloromethane (CH2Cl2), chloroform (CHCl3) and carbon tetrachloride (CCl4) on the extent of oxidation of aqueous I- to I3- has been investigated in (a) a liquid whistle reactor (LWR ...
Bremner, David H.   +5 more
core   +3 more sources

Material Removal Characteristics of Spherical-Array-Focused Ultrasonic Abrasive Machining

open access: yesMicromachines, 2023
To improve the ultrasonic energy and realize far-field ultrasonic abrasive machining of complex surfaces, a spherical-array-focused ultrasonic abrasive machining system was established.
Bo Du   +5 more
doaj   +1 more source

Ultrasound enhancement of microfiltration performance for natural organic matter removal [PDF]

open access: yes, 2007
Sonication of water at 1500 W power prior to microfiltration showed that short sonication times (60 s) gave a reduced flux decline. It is suggested that a less potent, smaller molecular form of the natural organic matter (NOM) was produced by sonication.
Bolto, Brian   +4 more
core   +1 more source

Hot dip process of aluminum alloy based on nonlinear ultrasonic cavitation effect

open access: yesCailiao gongcheng, 2021
20 kHz ultrasounds were applied in the process of 390 ℃ hot dip galvanization of 1050 aluminum alloy. The evolution of the cavitation bubbles were solved numerically from the Keller-Miksis and Mettin equations.
CHEN Hai-yan   +5 more
doaj   +1 more source

Ultrasonic wave propagation in cylindrical vessels and implications for ultrasonic reactor design [PDF]

open access: yes, 2010
Reactors in which processes are enhanced by ultrasound are hampered by the lack of a theoretical framework on their design. Simulation results of ultrasonic wave propagation in a cylindrical geometry are presented in this work, which are then used to ...
Gachagan, A.   +3 more
core   +1 more source

Numerical study of the synergistic effect of cavitation and micro-abrasive particles

open access: yesUltrasonics Sonochemistry, 2022
In ultrasonic-assisted machining, the synergistic effect of the cavitation effect and micro-abrasive particles plays a crucial role. Studies have focused on the investigation of the micro-abrasive particles, cavitation micro-jets, and cavitation shock ...
Yingze Fu   +3 more
doaj   +1 more source

Grain refinement efficiency of a new oxide-containing master alloy for aluminium casting alloys [PDF]

open access: yes, 2014
In this study, grain refinement efficiency of a new oxide master alloy based on MgAl2O4 was demonstrated on an A357 alloy. The grain size of the reference alloy was reduced by 50-60% with the addition of the master alloy and introduction of ultrasonic ...
Babu, NH   +3 more
core   +1 more source

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