Results 11 to 20 of about 84,280 (228)
Density tagging velocimetry [PDF]
Experiments in Fluids, 2011 Density tagging velocimetry, a novel optical technique for point-wise measurement of flow velocity is proposed here. This new method is based on the detection and subsequent tracking of a local density variation deliberately inserted in the flow. The experimental implementation comprising tagging, detection, and velocity evaluation reverts to and ...
Raffel, Markus +4 more
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Lorentz Force Velocimetry [PDF]
Physical Review Letters, 2006 We describe a noncontact technique for velocity measurement in electrically conducting fluids. The technique, which we term Lorentz force velocimetry (LFV), is based on exposing the fluid to a magnetic field and measuring the drag force acting upon the magnetic field lines.
A, Thess, E V, Votyakov, Y, Kolesnikov
openaire +2 more sources
'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
Frequency division multiplexing for interferometric planar Doppler velocimetry [PDF]
, 2014 A new method of acquiring simultaneously the signal and reference channels used for interferometric planar Doppler velocimetry is proposed and demonstrated.
Bledowski, Ian A. +3 more
core +1 more source
Sensors, 2016 Optical feedback interferometry (OFI) is a compact sensing technique with recent implementation for flow measurements in microchannels. We propose implementing OFI for the analysis at the microscale of multiphase flows starting with the case of parallel ...
Evelio E. Ramírez-Miquet +5 more
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The dependence of speckle contrast on velocity: a numerical study
Journal of the European Optical Society-Rapid Publications, 2022 We study how the speckle contrast depends on scatterer velocity, with the goal of further developing laser speckle imaging as a quantitative measurement technique. To that end, we perform interferometric computer simulations on a dilute plug flow.
van As Kevin +4 more
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UVP Measurement of Flow around a Baffle in a Rectangular Open Channel
Journal of Fluid Science and Technology, 2009 The effect of an intermediate standing baffle on the structure of flow in a rectangular open channel has been successfully captured by an Ultrasonic Velocity Profiler (UVP).
Hamidreza JAMSHIDNIA, Yasushi TAKEDA
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Particle image velocimetry studies of bubble growth and detachment by high speed photography [PDF]
, 1997 An understanding of bubble flows is important in the design of process equipment, particularly in the chemical and power industries. In vapour-liquid processes the mass and heat transfer between the phases is dominated by the liquid-vapour interface and ...
Dempster, William +3 more
core +1 more source
Development of a Hot-Wire Probe with Two Parallel Wires Placed Closely Together
Journal of Fluid Science and Technology, 2009 We manufactured a new hot-wire probe with two parallel wires placed closely together for measuring a transitional boundary-layer flow. The main feature of this new probe is that it is much smaller than a conventional multi-sensor probe, such as an X-type
Naoki SEKIYA, Akira MATSUMOTO
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Flow rate measurement in aggressive conductive fluids
EPJ Web of Conferences, 2014 Two non-contact experimental methods of flow rate measurements for aggressive conductive liquids are described. The techniques are based on electromagnetic forces and Faraday’s law: Lorentz force is induced inside moving conductive liquid under influence
Dubovikova Nataliia +2 more
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