Results 31 to 40 of about 18,690 (210)

Iterative particle matching for three-dimensional particle-tracking velocimetry [PDF]

Experiments in Fluids, 2020
Abstract A new evaluation scheme for double exposure three-dimensional particle-tracking velocimetry is proposed. Its main feature, a robust multi-pass matching algorithm, is presented and validated by investigating its performance when applied to a synthetic data set.
Rubbert, Ernst Rolf Alexander, Schröder, Wolfgang   +1 more
openaire   +2 more sources

Improvement in the Number of Velocity Vector Acquisitions Using an In-Picture Tracking Method for 3D3C Rainbow Particle Tracking Velocimetry

Fluids
Particle image velocimetry and particle tracking velocimetry (PTV) have developed from two-dimensional two-component (2D2C) velocity vector measurements to 3D3C measurements.
Mao Takeyama, Kota Fujiwara, Yasuo Hattori   +2 more
doaj   +1 more source

Measurement and analysis of the internal flow field in the hydrodynamic torque converter with adjustable guide vanes

Advances in Mechanical Engineering, 2015
This article presents a particle-tracking velocimetry experiment for studying internal flows of hydrodynamic torque converter whose guide vanes are adjustable. The torque converter in which the flow region is an enclosed space with multiple impellers has
Ma Wenxing, Liu Hao, Liu Chunbao, Liu Changsuo   +3 more
doaj   +1 more source

Tracking shocked dust: state estimation for a complex plasma during a shock wave

, 2011
We consider a two-dimensional complex (dusty) plasma crystal excited by an electrostatically-induced shock wave. Dust particle kinematics in such a system are usually determined using particle tracking velocimetry.
Durniak, Céline, Oxtoby, Neil P., Ralph, Jason F., Samsonov, Dmitry   +3 more
core   +1 more source

X-Ray imaging method for in-situ study of particle-laden flows

e-Journal of Nondestructive Testing
 The accurate measurement of flow parameters often depends on sensor accessibility. Optical flow assessment techniques, such as Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV), are limited to optically transparent media. However,
Julian Kattinger, Phi-Long Chung, Mike Kornely, Julian Ehrler, Marc Kreutzbruck, Christian Bonten   +5 more
doaj   +1 more source

Video-rate 3D Particle Tracking with Extended Depth-of-field in Thick Biological Samples [PDF]

, 2017
We present a single-aperture 3D particle localisation and tracking technique with a vastly increased depth-of-field without compromising optical resolution and throughput. Flow measurements in a FEP capillary and a zebrafish blood vessel are demonstrated
Carles, Guillem, Harvey, Andrew R., Taylor, Jonathan, Zammit, Paul, Zhou, Yongzhuang, Zickus, Vytautas   +5 more
core   +1 more source

Improved 3-D Particle Tracking Velocimetry with Colored Particles

Journal of Signal and Information Processing, 2011
The present work introduces an extension to three-dimensional Particle Tracking Velocimetry (3-D PTV) in order to investigate small-scale flow patterns. Instead of using monochrome particles the novelty over the prior state of the art is the use of differently dyed tracer particles and the identification of particle color classes directly on Bayer raw ...
Bendicks, C., Tarlet, D., Roloff, C., Bordás, R., Wunderlich, B., Michaelis, B., Thévenin, D.   +6 more
openaire   +3 more sources

Optimizing Velocity Field Measurement with 3D-Printed Particles and MATLAB: A Cost-Effective System for Flow Visualization

Aerospace
This article aims to highlight the importance of including quantitative measurements when conducting flow visualization tests, such as those performed in towing tanks, within fluid mechanics analysis. It investigates the possibility of measuring velocity
José Juan Aliaga-Maraver, Ángel Antonio Rodríguez-Sevillano, María Jesús Casati-Calzada, Rafael Bardera-Mora, Estela Barroso-Barderas, Juan Carlos García-Matías, Alfonso Láinez-Muñiz, Davide Visentin   +7 more
doaj   +1 more source

'DefocusTracker': A Modular Toolbox for Defocusing-based, Single-Camera, 3D Particle Tracking

Journal of Open Research Software, 2021
The need for single-camera 3D particle tracking methods is growing, among others, due to the increasing focus in biomedical research often relying on single-plane microscopy imaging.
Rune Barnkob, Massimiliano Rossi
doaj   +1 more source

Ultrasound-induced acoustophoretic motion of microparticles in three dimensions [PDF]

, 2013
We derive analytical expressions for the three-dimensional (3D) acoustophoretic motion of spherical microparticles in rectangular microchannels. The motion is generated by the acoustic radiation force and the acoustic streaming-induced drag force.
Augustsson, Per,, Barnkob, R., Bruus, H., Kaehler, C. J., Laurell, Thomas,, Lund University., Lund University., Marin, A. G., Muller, P. B., Rossi, M.   +9 more
core   +3 more sources