Results 221 to 230 of about 1,627 (278)

Advancements and Future Prospects in Ocean Wave Energy Harvesting Technology Based on Micro-Energy Technology. [PDF]

Micromachines (Basel)
Yang W, Peng J, Chen Q, Zhao S, Zhuo R, Luo Y, Gao L.   +6 more
europepmc   +1 more source

Wireless Frequency-Multiplexed Acoustic Array-based Acoustofluidics. [PDF]

Adv Mater Technol
Li J, Bo L, Li T, Zhao P, Du Y, Cai B, Shen L, Sun W, Zhou W, Tian Z.   +9 more
europepmc   +1 more source

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The influence of micro vortex generator on inception cavitation

Physics of Fluids, 2021
The objective of the present paper is to investigate the influence of the micro vortex generator (mVG) on the inception cavitation number and mode around a National Advisory Committee for Aeronautics 66 hydrofoil. Two different sets of mVG with varying position are employed in this paper, i.e., the mVG-1 (located upstream of the laminar separation ...
Biao Huang, Hanzhe Zhang
exaly   +2 more sources

An improved micro-vortex generator in supersonic flows

Aerospace Science and Technology, 2015
Abstract The micro-vortex generator has currently received much attention as a passive flow control device in supersonic flow. This paper investigates the induced velocity and the trajectory of the vortices generated by micro-vortex generators by using the point vortex model. The analysis suggests that counter-rotating vortices could adversely affect
Xiaorong Xiang
exaly   +2 more sources

Tip vortex cavitation control by the micro vortex generator

Physics of Fluids
The present study investigates the control effect of a vane-shaped micro vortex generator (VG) on the inception and development of tip vortex cavitation. Five different arrangements were tested by varying the position and installation angle near the tip of a NACA (National Advisory Committee for Aeronautics) 662-415 hydrofoil.
Qingqing Ye
exaly   +2 more sources

Numerical Simulation of Micro Vortex Generators

2nd AIAA Flow Control Conference, 2004
A computational study of the aerodynamics of vane type micro-vortex generators has been performed. Solutions of the incompressible Reynolds -Averaged Navier-Stokes equations have been obtained for a rectangular vane type micro-vortex generator mounted on a flat plate at a Reynolds number of 81,000 based upon vortex generator length.
Erik Wik, Scott Shaw
openaire   +1 more source

Nonlinear Smoluchowski slip velocity and micro-vortex generation

Journal of Fluid Mechanics, 2002
When an electric field is applied across a conducting and ion-selective porous granule in an electrolyte solution, a polarized surface layer with excess counter-ions is created. The depth of this layer and the overpotential V across this layer are functions of the normal electric field j on the granule surface.
Ben, Y., Chang, H.-C.
openaire   +2 more sources

Characterization of Micro-Vortex Generators in Supersonic Flows

49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2011
An experimental study of several vortex generators with heights well less than that of the boundary-layer (“micro-” VGs) has been conducted in a supersonic wind tunnel to better understand vortex strength and development downstream of the device. VGs known as micro-ramps and common-flow up vane pairs of two heights were tested at Mach 1.5.
William Nolan, Holger Babinsky
openaire   +1 more source

Particle image velocimetry of supersonic jets with micro vortex generators

The Journal of the Acoustical Society of America, 2023
The flow field of supersonic jets with micro vortex generators (MVGs) is investigated using Particle Image Velocimetry (PIV) to shed light on the noise reduction mechanisms associated with such devices. Recently, MVG nozzles have been developed as a new noise reduction technology through the collaboration between the University of Cincinnati and the ...
Mohammad Saleem, Omar L. Rodriguez, Aatresh Karnam, Ephraim Gutmark, Junhui Liu   +4 more
openaire   +1 more source