Results 111 to 120 of about 12,590,314 (158)

Universal outlier detection for particle image velocimetry (PIV) and particle tracking velocimetry (PTV) data

Measurement Science and Technology, 2010
A generalization of the universal outlier detection method of Westerweel and Scarano (2005 Universal outlier detection for PIV data Exp. Fluids 39 1096–100) has been made, allowing the use of the above algorithm on both gridded (PIV) and non-gridded (PTV) data.
Duncan, J., Dabiri, D., Hove, J., Gharib, M.   +3 more
openaire   +2 more sources

Continuously trackable PIV (particle image velocimetry) with correlation image sensor

SPIE Proceedings, 2008
In this paper, we propose a new measurement scheme, called phase-stamp imaging using correlation image sensor(CIS). The correlation image sensor, developed by us, is the device which outputs the temporal correlation between incident light intensity and three reference signals which is common among whole pixel.
Toru Kurihara, Shigeru Ando
openaire   +1 more source

Biospeckle PIV (Particle Image Velocimetry) for analyzing fluid flow

Flow Measurement and Instrumentation, 2013
Abstract In this paper, we present an alternative protocol for use with the Particle Image Velocimetry (PIV) technique in fluid and particle flow monitoring, without the use of external particles seeded as targets in the cross-correlation of the flow images.
Soares, R. R., Barbosa, H. C., Braga, R. A., Botega, J. V. L., Horgan, G. W.   +4 more
openaire   +1 more source

Investigation of airflow patterns in a microclimate by particle image velocimetry (PIV)

Building and Environment, 2008
Problems with mould growth in dwellings usually occur in bedrooms in the microclimate behind closets placed next to exterior walls with poor insulation. It is anticipated that the problems are caused by lack of airflow behind the furniture in combination with a colder surface temperature and a high moisture production.
Mortensen, Lone H., Rode, Carsten, Peuhkuri, Ruut   +3 more
openaire   +3 more sources

5th International Symposium on Particle Image Velocimetry, PIV'03

Measurement Science and Technology, 2004
The advent of particle image velocimetry (PIV) in the late 20th century brought about a paradigm change in the technique of flow field measurement, from point measurement to field measurement. This revolution is a result of the recent advances in computers, video cameras, optics and lasers and a deeper understanding of the theory of image processing ...
Hyung Jin Sung, Kyung Chun Kim, Sang Joon Lee   +2 more
openaire   +1 more source

Particle Image Velocimetry (PIV) for Granular Avalanches on Inclined Planes

2003
This paper is concerned with experimental results of sand avalanches flowing down inclined plexiglass chutes with lateral confinement. We introduce the Particle Image Velocimetry (PIV) technique for granular avalanches and discuss the differences in its implementation compared to standard PIV.
Eckart, Winfried, Gray, John Mark Nicholas Timm; id_orcid 0000-0003-3554-0499, hutter, Kolumban   +2 more
openaire   +2 more sources

Visualization of aerocolloidal biological particles using 2D particle image velocimetry (PIV)

SPIE Proceedings, 2003
Recent concerns over the possible use of airborne biological particles as weapons of mass destruction have significantly increased the attention that researchers are giving to this threat. The size of these particles, ranging from a fraction of a micrometer to several tens of micrometers, allows them to travel over long distances before settling out ...
Carsie A. Hall III, Sree Masabattula, Kazim M. Akyuzlu, Edwin P. Russo, Maren A. Klich   +4 more
openaire   +1 more source

The application of PIV (Particle Image Velocimetry) to transonic flow measurements

ICIASF '95 Record. International Congress on Instrumentation in Aerospace Simulation Facilities, 2002
A number of PIV (Particle Image Velocity) measurements have been made at transonic speeds. The initial objective of the work has been to explore if such measurements could be made remotely and processed in an accurate and automatic fashion. Subsequently PIV measurements have been made remotely at optical stand-off distance of up to 1 m. PIV results are
openaire   +1 more source

Particle Image Velocimetry (PIV) Analysis of Particle Settling in Narrow Fracture Experiments

Geotechnical Testing Journal, 2018
Abstract This paper presents the results of an experimental study of dense sand particles’ settling micromechanics in narrow smooth and rough fractures. Particle Image Velocimetry (PIV) is used for the analysis of velocities of individual particles and groups of particles and their relative paths, collisions, and agglomerating in viscous
Lan Luo, Ingrid Tomac
openaire   +1 more source

Experimental investigation of Bathtub vortex using Particle Image Velocimetry (PIV)

Among the huge variety of fluid vortices, the vortex observed when water is drained through an opening in the bottom of a water tank, is a natural phenomenon that is not only familiar, but has continued to fascinate keen observers. This phenomenon commonly termed as “bathtub vortex”, instead, refers to spatial vortices.
openaire   +2 more sources