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1994
Particle image velocimetry (PIV), also called particle image displacement velocimetry (PIDV), is a method of whole flow field velocimetry, which is currently causing a lot of interest. This methodrelies on the recording of particle positions in a section of the flow at a given instant in time. The measurement region may be defined by a thin laser sheet
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Particle image velocimetry (PIV), also called particle image displacement velocimetry (PIDV), is a method of whole flow field velocimetry, which is currently causing a lot of interest. This methodrelies on the recording of particle positions in a section of the flow at a given instant in time. The measurement region may be defined by a thin laser sheet
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1989
One of the most challenging and time-consuming problems in experimental fluid mechanics is the measurement of the overall flow field properties, such as the velocity, vorticity, and pressure fields. Local measurements of the velocity field (i.e., at individual points) are now done routinely in many experiments using hot-wire (HW) or laser velocimetry ...
L. M. Lourenco +2 more
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One of the most challenging and time-consuming problems in experimental fluid mechanics is the measurement of the overall flow field properties, such as the velocity, vorticity, and pressure fields. Local measurements of the velocity field (i.e., at individual points) are now done routinely in many experiments using hot-wire (HW) or laser velocimetry ...
L. M. Lourenco +2 more
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2020
Moving fluids have always been an object of fundamental physical research. An understanding of the dynamic behavior of streaming liquids and gases is the basis for disciplines in engineering ranging from the design of aircraft and ships to harbor development, wavebreaker projects, cavitation erosion, or sound production and attenuation.
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Moving fluids have always been an object of fundamental physical research. An understanding of the dynamic behavior of streaming liquids and gases is the basis for disciplines in engineering ranging from the design of aircraft and ships to harbor development, wavebreaker projects, cavitation erosion, or sound production and attenuation.
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Standard images for particle-image velocimetry
Measurement Science and Technology, 2000Particle-image velocimetry (PIV) offers lots of advantages for studying fluid mechanics. Many PIV techniques and systems have been developed. However, no standard evaluation tool for evaluating the effectiveness and accuracy of the PIV systems has been established.
K Okamoto, S Nishio, T Saga, T Kobayashi
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Ultrasound imaging velocimetry of the human vitreous
Experimental Eye Research, 2012Knowledge of vitreous motion in response to saccades is a prerequisite for understanding vitreous rheology. Purpose of present paper is to introduce Ultrasound Image Velocimetry of the human eye, measure scleral and vitreous velocity fields and test the reproducibility of the proposed technique.
T. Rossi +7 more
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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.
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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.
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Particle-Image Velocimetry and the Assignment Problem
2017The 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 +3 more
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Continuous scanning, laser imaging velocimetry
Journal of Visualization, 2006Careful exploitation of the anisotropy native to late time stratified and rotating flows permits the use of a laser scanning measurement technique to simultaneously resolve the 2D velocity field in O(100) slices. The technique relies on getting the Reynolds number from the length scale while keeping the velocity small, this provides a characteristic ...
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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
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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
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Photogrammetric Particle Image Velocimetry
2004The 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
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