Results 191 to 200 of about 27,207 (230)

Particle-Image Velocimetry and the Assignment Problem

2017
The Particle-Image Velocimetry (PIV) is a standard optical contactless measurement technique to determine the velocity field of a fluid flow for example around an obstacle such as an airplane wing. Tiny density neutral and light-reflecting particles are added to the otherwise invisible fluid flow.
Franz-Friedrich Butz, Armin Fügenschuh, Jens Nikolas Wood, Michael Breuer   +3 more
openaire   +1 more source

Special-purpose computer for Particle Image Velocimetry

Computer Physics Communications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shin-ichi Satake, Gaku Sorimachi, Nobuyuki Masuda, Tomoyoshi Ito   +3 more
openaire   +1 more source

Rainbow Particle Imaging Velocimetry

2017
We introduce a new approach for snapshot imaging of time-resolved, non-stationary 3D fluid flows. Based on Particle Imaging Velocimetry (PIV), a well-established technique for fluid flow analysis, we propose a novel approach for spectral encoding of the third dimension.
Lamothe, Élodie, Ihrke, Ivo, Granier, Xavier   +2 more
openaire   +4 more sources

Thermographic Particle Image Velocimetry

Imaging and Applied Optics 2014, 2014
Planar high-speed temperature and velocity measurements in gaseous flows can be performed simultaneously using micrometer-sized thermographic phosphor particles as tracers. Validation of this concept and applications in turbulent flows will be presented.
Benoit Fond, Christopher Abram, Frank Beyrau   +2 more
openaire   +1 more source

Particle Image Velocimetry

2001
Particle Image Velocimetry (PIV) belongs to the class of optical “whole- field” measuring techniques. The name of the method is self-explaining: The velocity distribution in a whole field of a fluid flow is determined by measuring the displacements Δs that the images of tracer particles experience during a time interval Δt.
openaire   +1 more source

Particle Image Velocimetry

Vehicle Dynamics International
Making the right choice of high-speed camera is essential for effective and efficient Particle Image Velocimetry (PIV) analysis of airflow. Photron discusses how to make the right selection
openaire   +1 more source

Photogrammetric Particle Image Velocimetry

2004
The Particle-Image Velocimetry (PIV) is a meanwhile quite mature measuring method in its application on a 2-dimensional (2D) measuring plane for the collection of 2 or 3 velocity-components (2C resp. 3C) within this plane (planar PIV). A disadvantage is the limitation to a plane of 1...5 mm thickness.
A. Schimpf, S. Kallweit
openaire   +1 more source

Particle Image Velocimetry by Feature Tracking

2001
Particle Image Velocimetry (PIV) is a popular approach to flow visualisation in hydro- and aerodynamic studies and applications. The fluid is seeded with particles that follow the flow and make it visible. Traditionally, correlation techniques have been used to estimate the displacements of the particles in a digital PIV sequence.
openaire   +1 more source

Thermographic Particle Image Velocimetry

Renewable Energy and the Environment, 2013
The particle image velocimetry technique can be extended to simultaneously measure fluid temperatures by seeding thermographic phosphor particles. Following UV excitation, these particles exhibit a temperature-dependent phosphorescence spectrum that can be utilized for thermometry.
openaire   +1 more source

PARTICLE IMAGE VELOCIMETRY: A REVIEW

Journal of Flow Visualization and Image Processing
Particle image velocimetry (PIV) as a measurement system has been reviewed in this article. The acceptance of PIV as the utmost quantitative flow measurement technique is located with historical developments of other flow visualization and measurement techniques.
Majid Hassan Khan, Amit Agrawal
openaire   +1 more source