Results 1 to 10 of about 365,438 (315)

Using high speed visualization to identify variations in the formation and distribution of plasmonic microbubbles [PDF]

open access: yesAIP Advances
Plasmonic heating of gold nanoparticles (GNPs) using pulsed lasers (PLs) enables microbubble generation for imaging, diagnostics, and microfluidics. However, aggregation and photomodification cause inconsistencies (variations) in microbubble formation ...
Mohammad Amer Allaf   +2 more
doaj   +2 more sources

High-speed visualization of ultrasonic emulsification in microgravity: interactions between cavitation dynamics and liquid–liquid interface topology [PDF]

open access: yesUltrasonics Sonochemistry
Ultrasonic emulsification is a widely used technique for generating fine dispersions of immiscible liquids, yet its underlying mechanisms remain only partially understood, particularly under reduced-gravity conditions. In the absence of gravity, buoyancy-
Jakob Mali   +6 more
doaj   +2 more sources

Direct inducer cavitation instability identification using high speed visualization [PDF]

open access: yesE3S Web of Conferences, 2022
Direct identification of inducer cavitation instability was conducted via high speed video footage without pressure information. A two-bladed inducer undergoing alternate blade cavitation has been tested.
Yoon Youngkuk, Song Seung Jin
doaj   +1 more source

Oscillation of Cavitating Vortices in Draft Tubes of a Simplified Model Turbine and a Model Pump–Turbine

open access: yesEnergies, 2022
The self-oscillation of the cavitating vortices is one of the dangerous phenomena of hydraulic turbine operation near full-load conditions. This work is an attempt to generalize data and expand insight on the phenomenon of self-excited oscillations by ...
Sergey Skripkin   +4 more
doaj   +1 more source

High Speed Optical Tomography for Flow Visualization [PDF]

open access: yesTopical Meeting on Industrial Applications of Computed Tomography and NMR Imaging, 1984
Optical computer assisted tomographic (OCAT) reconstruction of a three-dimensional unsteady object requires simultaneous acquisition of many line-of-sight measurements (projections). A projection represents a measurement of absorption or index-of-refraction along the pathlength.
R, Snyder, L, Hesselink
openaire   +2 more sources

Investigation of Temperature Fluctuation of Diode-Rectified Multiphase AC Arc by High-Speed Visualization [PDF]

open access: yesMATEC Web of Conferences, 2021
An innovative multiphase AC arc was drastically improved by diode-rectification technique with bipolar electrode. Temperature fields and arc behaviour of the diode-rectified multiphase AC was successfully visualized on the basis of the high-speed camera ...
Tanaka Manabu   +4 more
doaj   +1 more source

Dynamics of oil–water interface at the beginning of the ultrasonic emulsification process

open access: yesUltrasonics Sonochemistry, 2023
A lot of effort has been dedicated in recent years towards understanding the basics of cavitation induced emulsification, mainly in the form of single cavitation bubbles. Regarding bulk acoustic emulsification, a lot less research has been done.
Žan Boček   +4 more
doaj   +1 more source

A Study on Crystallization of Perovskite Using a High-Speed Meniscus Solution Shearing Coating Visualization Device [PDF]

open access: yes한국정밀공학회지, 2021
Among the types of new and renewable energy, perovskite solar cells, which are next-generation solar cells, are capable of a solution process at a low temperature of 200oC or less, and have the advantages of high efficiency and low cost; hence, many ...
I-Ji Kim, Hyun Ah Lee, Dong Soo Kim
doaj   +1 more source

Visualization and Sound Measurements of Vibration Plate in a Boiling Bubble Resonator

open access: yesFluids, 2021
We developed a boiling bubble resonator (BBR) as a new heat transfer enhancement method aided by boiling bubbles. The BBR is a passive device that operates under its own bubble pressure and therefore does not require an electrical source.
Junichiro Ono   +4 more
doaj   +1 more source

Experimental and Numerical Studies of Cloud Cavitation Behavior around a Reversible S-Shaped Hydrofoil

open access: yesJournal of Marine Science and Engineering, 2022
The S-shaped hydrofoil is often used in the design of reversible machinery due to its centrally symmetrical camber line. The objective of this paper is to study the influence of cloud cavitation on the flow structure and the unsteady characteristics of ...
Haiyu Liu   +3 more
doaj   +1 more source

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