Results 31 to 40 of about 5,720 (223)

HoloTrack: in-situ holographic particle tracking velocimetry of cloud droplets [PDF]

Atmospheric Measurement Techniques
We present HoloTrack, a novel, fully autonomous measurement system designed to capture three-dimensional (3D) cloud droplet data and provide detailed insights into droplet dynamics, their spatial distribution and velocity.
B. Thiede, B. Thiede, F. Nordsiek, Y. Kim, E. Bodenschatz, E. Bodenschatz, E. Bodenschatz, G. Bagheri   +7 more
doaj   +1 more source

New Algorithms in Particle Tracking Velocimetry

Journal of the Visualization Society of Japan, 1999
New algorithms have been implemented and tested for the use in particle tracking velocimetry (PTV). These new algorithms have been introduced mainly in the part of particle tracking itself, but as well as in the preceding part of individual particles extraction.
Ohmi, Kazuo, Li, Hang Yu
openaire   +2 more sources

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

Use of Particle Tracking Velocimetry for Measurements of Granular Flows: Review and Application

KONA Powder and Particle Journal, 2014
A brief review of publications that deal with particle image velocimetry (PIV) and particle tracking velocimetry (PTV) is presented first in this paper.
Nirma Jesuthasan, B. Rabi Baliga, Stuart B. Savage   +2 more
doaj   +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

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

Optically trapped particle tracking velocimetry

Physical Review Fluids
In this paper, we propose a microflow velocimetry based on particle tracking with the aid of optical trapping of tracers, namely, (ot-PTV). The ot-PTV has two phases: a trap phase, in which individual tracers are trapped by an optical force and held at a measurement position; and a release phase, in which the tracer is released and advected by the ...
Tetsuro Tsuji, Shoma Hashimoto, Satoshi Taguchi   +2 more
openaire   +2 more sources

3D particle tracking velocimetry using dynamic discrete tomography [PDF]

, 2014
Particle tracking velocimetry in 3D is becoming an increasingly important imaging tool in the study of fluid dynamics and combustion as well as plasmas.
Dmitry Moseev, Alpers, A, Andreas Alpers, Moseev, D, Alpers, Andreas, Gritzmann, Peter, Salewski, Mirko, Alpers, A., Moseev, D., Salewski, M., Gritzmann, P., Mirko Salewski, Moseev, Dmitry, Peter Gritzmann, Salewski, M, Gritzmann, P   +15 more
core   +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

Errors in particle tracking velocimetry with high-speed cameras [PDF]

Review of Scientific Instruments, 2011
Velocity errors in particle tracking velocimetry (PTV) are studied. When using high-speed video cameras, the velocity error may increase at a high camera frame rate. This increase in velocity error is due to particle-position uncertainty, which is one of the two sources of velocity errors studied here. The other source of error is particle acceleration,
Feng, Yan, Goree, J., Liu, Bin
openaire   +3 more sources