PIVlab – Towards User-friendly, Affordable and Accurate Digital Particle Image Velocimetry in MATLAB
William Thielicke,Eize Stamhuis +1 more
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TLDR
The accuracy of several algorithms was determined and the best performing methods were implemented in a user-friendly open-source tool for performing DPIV flow analysis in Matlab.Abstract:
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 quality of the flow measurements is affected by computational details such as image pre-conditioning, sub-pixel peak estimators, data validation procedures, interpolation algorithms and smoothing methods. The accuracy of several algorithms was determined and the best performing methods were implemented in a user-friendly open-source tool for performing DPIV flow analysis in Matlab.read more
Citations
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Journal ArticleDOI
The Influence of Pressure on Flame-Flow Characteristics of a Reacting Jet in Crossflow
Journal ArticleDOI
Study on Plant Growth and Nutrient Uptake under Different Aeration Intensity in Hydroponics with the Application of Particle Image Velocimetry
Bateer Baiyin,Kotaro Tagawa,Mina Yamada,Xinyan Wang,Satoshi Yamada,Sadahiro Yamamoto,Yasuomi Ibaraki +6 more
TL;DR: In this paper, the effects of aeration intensity on plants were studied through cultivation experiments and flow field visualization, and it was found that the growth of plants did not increase linearly with an increase in aeration.
Dissertation
Modeling, simulation and optimization of multiphase micropacked-bed reactors and capillary sonoreactors
TL;DR: In this paper, the phase field method (PFM) was used to capture the complexity of multiphase flow in micropacked-bed reactors, which can suffer from poor and unpredictable mass-transfer performance.
DissertationDOI
Flow of healthy and sickle red blood cells in microcirculatory conditions : clustering process and self-margination phenomenon
TL;DR: In this paper, the authors caracterise experimentalement the formation of clusters au cours du passage of globules rouges (GRs) sains and drepanocytaires dans microcapillaires droites.
Journal ArticleDOI
Suction Flows Generated by the Carnivorous Bladderwort Utricularia—Comparing Experiments with Mechanical and Mathematical Models
Krizma Singh,Roberto C. Reyes,Gabriel Campa,Matthew D. Brown,Fatima Hidalgo,Otto Berg,Ulrike K. Müller +6 more
TL;DR: In this article, the authors combine flow visualization on bladderwort traps with measurements on a mechanical, dynamically scaled model of a suction feeder, and find that these traps generate flows that are more similar to the inertia-dominated flows of adult fish than the viscosity-dominated flow of larval fish.
References
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Journal ArticleDOI
The Design and Implementation of FFTW3
Matteo Frigo,Steven G. Johnson +1 more
TL;DR: It is shown that such an approach can yield an implementation of the discrete Fourier transform that is competitive with hand-optimized libraries, and the software structure that makes the current FFTW3 version flexible and adaptive is described.
Book
Particle Image Velocimetry: A Practical Guide
TL;DR: In this paper, the authors present a practical guide for the planning, performance and understanding of experiments employing the PIV technique, which is primarily intended for engineers, scientists and students, who already have some basic knowledge of fluid mechanics and nonintrusive optical measurement techniques.
Journal ArticleDOI
Particle-Imaging Techniques for Experimental Fluid Mechanics
TL;DR: A review of these methods can be found in articles by Lauterborn & Vogel (1984), Adrian (1986a), Hesselink (1988), and Dudderar et al..
Journal ArticleDOI
Adaptive histogram equalization and its variations
Stephen M. Pizer,Stephen M. Pizer,E. Philip Amburn,E. Philip Amburn,John D. Austin,Robert Cromartie,Ari Geselowitz,Ari Geselowitz,Trey Greer,Bart M. ter Haar Romeny,John B. Zimmerman,John B. Zimmerman +11 more
TL;DR: It is concluded that clipped ahe should become a method of choice in medical imaging and probably also in other areas of digital imaging, and that clip ahe can be made adequately fast to be routinely applied in the normal display sequence.
Journal ArticleDOI
Digital Particle Image Velocimetry
Christian Willert,Morteza Gharib +1 more
TL;DR: In this article, the directional ambiguity associated with PIV and LSV is resolved by implementing local spatial cross-correlations between two sequential single-exposed particle images, and the recovered velocity data are used to compute the spatial and temporal vorticity distribution and the circulation of the vortex ring.