Results 21 to 30 of about 132,662 (256)
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
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
doaj +1 more source
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
doaj +1 more source
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
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
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
doaj +1 more source
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
doaj +1 more source
PIVlab – Towards User-friendly, Affordable and Accurate Digital Particle Image Velocimetry in MATLAB
, 2014 Digital particle image velocimetry (DPIV) is a non-intrusive analysis technique that is very popular for mapping flows quantitatively. To get accurate results, in particular in complex flow fields, a number of challenges have to be faced and solved: The ...
W. Thielicke, E. Stamhuis
semanticscholar +1 more source
Particle image velocimetry - Classical operating rules from today’s perspective
, 2020 Over the last four decades, particle image velocimetry (PIV) has evolved into a powerful and significant measurement technique. The technique has been applied to many areas of fluid mechanics and the accuracy and resolution has been greatly improved over
S. Scharnowski, C. Kähler
semanticscholar +1 more source
Journal of Open Research Software, 2017 This paper describes OpenOpticalFlow, an open source optical flow program in Matlab for extraction of high-resolution velocity fields from various flow visualization images.
Tianshu Liu
doaj +1 more source