Results 11 to 20 of about 68,180 (253)

Design of a High Uniformity Laser Sheet Optical System for Particle Image Velocimetry

open access: yesAerospace, 2021
Particle image velocimetry (PIV) is a non-contact, instantaneous and full-flow velocity measurement method based on cross-correlation analysis of particle image. It is widely used in fluid mechanics and aerodynamics.
Kewei Yin, Jun Zhang, Shuang Chen
doaj   +1 more source

Experimental data of the static behavior of reinforced concrete beams at room and low temperature

open access: yesData in Brief, 2016
This article provides data on the static behavior of reinforced concrete at room and low temperature including, strength, ductility, and crack widths of the reinforced concrete.
M. Mehdi Mirzazadeh   +2 more
doaj   +1 more source

Study on visualization of water mixing flows in a digester equipped with a vertical impeller by using radiotracers

open access: yesNuclear Engineering and Technology, 2020
A mixer with a new concept design has been adapted into water treatment plants. It reportedly cuts down the energy consumption of the mixer by the new mixer, which moves vertically and creates internal flows toward its bottom.
Sung-Hee Jung   +3 more
doaj   +1 more source

Primary analysis of the trajektory of floating particles in compound channel

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: The aim of the study was to determine the parameters of the stream transport capacity using turbulent diffusion coefficients using the imaging technique and to compare them with the coefficients obtained as a result of the measurement ...
Marcin Krukowski, Piotr Siwicki
doaj   +1 more source

Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows [PDF]

open access: yes, 2002
Defocusing digital particle image velocimetry (DDPIV) is the natural extension of planar PIV techniques to the third spatial dimension. In this paper we give details of the defocusing optical concept by which scalar and vector information can be ...
Gharib, Morteza, Pereira, Francisco
core   +1 more source

Study of flow around model of cooling tower by means of 2D Particle Image Velocimetry measurement

open access: yesEPJ Web of Conferences, 2017
This paper deals with flow around a bluff body of hyperboloid shape. It combines results gathered in the course of research by means of Particle Image Velocimetry (PIV).
Barraclough Veronika   +2 more
doaj   +1 more source

Systematic Error of Acoustic Particle Image Velocimetry and Its Correction

open access: yesMetrology and Measurement Systems, 2014
Particle Image Velocimetry is getting more and more often the method of choice not only for visualization of turbulent mass flows in fluid mechanics, but also in linear and non-linear acoustics for non-intrusive visualization of acoustic particle ...
Mickiewicz Witold
doaj   +1 more source

Challenges and improvements in applying a particle image velocimetry (PIV) approach to granular flows

open access: yesJournal of Physics: Conference Series, 2019
The particle image velocimetry (PIV) is a well-established non-invasive optical technique for measuring the velocity field in fluids. Recently, the PIV approach has been extended to granular flows, where the medium under investigation is composed of a ...
L. Sarno   +5 more
semanticscholar   +1 more source

Two-Dimensional Flow Field Measurement Method for Sediment-Laden Flow Based on Optical Flow Algorithm

open access: yesApplied Sciences, 2022
This paper proposes a novel particle image velocimetry (PIV) technique to generate an instantaneous two-dimensional velocity field for sediment-laden fluid based on the optical flow algorithm of ultrasound imaging.
Weiliang Tao   +3 more
doaj   +1 more source

A Review of Planar PIV Systems and Image Processing Tools for Lab-On-Chip Microfluidics

open access: yesSensors, 2018
Image-based sensor systems are quite popular in micro-scale flow investigations due to their flexibility and scalability. The aim of this manuscript is to provide an overview of current technical possibilities for Particle Image Velocimetry (PIV) systems
Fahrettin Gökhan Ergin   +2 more
doaj   +1 more source

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