Results 41 to 50 of about 39,348 (284)
Fast acoustic streaming in standing waves : Generation of an additional outer streaming cell [PDF]
Rayleigh streaming in a cylindrical acoustic standing waveguide is studied both experimentally and numerically for nonlinear Reynolds numbers from 1 to 30.
Catherine Weisman +7 more
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Acoustical Streaming in the Vicinity of a Sphere [PDF]
The Journal of the Acoustical Society of America, 1955 Recent studies have led to a satisfactory understanding of the details of acoustical streaming in the vicinity of a cylinder. Similar studies have now been completed for a sphere. In general, the steady flow around a sphere and the characteristic parameters are very much like what has been found for the cylinder.
openaire +1 more source
Frequency dependence of microflows upon acoustic interactions with fluids [PDF]
Rayleigh surface acoustic waves (SAWs), generated on piezoelectric substrates, can interact with liquids to generate fast streaming flows. Although studied extensively, mainly phenomenologically, the effect of the SAW frequency on streaming in fluids in ...
Cooper, Jonathan M. +4 more
core +1 more source
Compound micromachines powered by acoustic streaming [PDF]
2019 International Conference on Robotics and Automation (ICRA), 2019 This paper presents the design, fabrication, and operation of compound micromachines powered by acoustic streaming. The machine components were directly incorporated around pillars serving as shafts without further assembly steps using a single-step in situ polymerization process controlled by a programmable projector. Two strategies were presented for
Murat Kaynak +2 more
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Two-dimensional numerical simulations of nonlinear acoustic streaming in standing waves [PDF]
Numerical simulations of compressible Navier–Stokes equations in closed two-dimensional channels are performed. A plane standing wave is excited inside the channel and the associated acoustic streaming is investigated for high intensity waves, in the ...
BALTEAN-CARLÈS, Diana +4 more
core +1 more source
Acoustic Streaming in a Soft Tissue Microenvironment [PDF]
Ultrasound in Medicine & Biology, 2019 We demonstrated that sound can push fluid through a tissue-mimicking material. Although acoustic streaming in tissue has been proposed as a mechanism for biomedical ultrasound applications, such as neuromodulation and enhanced drug penetration, streaming in tissue or acoustic phantoms has not been directly observed.
El Ghamrawy, Ahmed +6 more
openaire +3 more sources
Numerical investigation of acoustic streaming vortices in cylindrical tube arrays
Open PhysicsAcoustic streaming has a significant effect on accelerating material mixing and flow field disturbance. To explore the characteristics of acoustic streaming in the cylindrical tube array field under the action of an acoustic wave, we derive the ...
Yang Yanfeng, Liu Chaolin, Xin Feng
doaj +1 more source
Metals, 2020 Ultrasonic treatment (UST), more precisely, cavitation and acoustic streaming, of liquid light metal alloys is a very promising technology for achieving grain and structure refinement, and therefore, better mechanical properties.
Eric Riedel, Martin Liepe, Stefan Scharf
doaj +1 more source
Frequency effect on streaming phenomenon induced by Rayleigh surface acoustic wave in microdroplets [PDF]
Acoustic streaming of ink particles inside a water microdroplet generated by a surface acoustic wave(SAW) has been studied numerically using a finite volume numerical method and these results have been verified using experimental measurements. Effects of
Alghane, Mansour +5 more
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Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source