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Intro
Particle Image Velocimetry (PIV) is a method to measure space- and time-resolved flow velocities in fluids. I will work a lot with this method during my PhD. In the past, I got to know some commercial...
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Some PIV images analyzed in MATLAB with PIVlab
Here are some images that were analyzed with PIVlab. Click for higher resolution.
View ArticlePIVlab 1.0 released
PIVlab is now available for download (see right hand side of this blog for the link).Here is a recent video showing a standard PIV analysis:
View ArticlePIVlab analysis
Synthetic PIV images were created using PIVlab's built-in image generator:
View ArticlePIVlab 1.1 released
PIVlab v 1.1, added features / improvements:better smoothing algorithm (smoothn.m) if supported (otherwise gaussian kernel is used)removed several known bugs/ pitfallsadded a feature to extract...
View ArticlePIVlab 1.13 released
Changed figure and all UI element units from pixels to points. This hopefully solves some problems with displaying the GUI.Statistics toolbox no longer required to run PIVlab (implemented NaN Suite by...
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PIVlab 1.2: Window deformation & streamlines
The new PIVlab release supports an advanced correlation technique (I want to thank Kyle Lynch for the discussion about this). Using a multipass window deformation technique, significantly reduces noise...
View ArticlePIVlab 1.2 vortex ring analysis
Watch it in HD on Vimeo:http://vimeo.com/26375991PIV vortex ring from B. Thielicke on Vimeo.
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A quick note on processing speed
Soon, I will need to analyze a large dataset (441.000 image pairs), so I did some tests to speed up the data processing. When using a QuadCore computer (actually 8 virtual cores in this case), up to...
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PIVlab 1.3
PIVlab version 1.3 is out!New features:Modify vector colorApply to all frames in area / line extractionsPost-processing from commandlineLoad user-generated masksPlot only every nth vector Line Integral...
View ArticlePIVlab 1.31
New / modified features in PIVlab v1.31:Included units (e.g. "m", "m/s", "1/s" or "px", "px/frame", "1/frame" etc.) wherever possibleExport image as *.epsModified "Export to Matlab Workspace" (all data...
View ArticlePIVlab update 1.32
Changespiv_FFTmulti.m:Updated analysis progress reportDuring analysis, the PIVlab main window is not forced to get the focus Corrected bug: Case sensitivity for "smoothn" in newer Matlab versions...
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Article 9
I updated the tutorial for PIVlab. The next release of PIVlab is in progress. It will have some additional features and some bug fixes.
View ArticlePIVlab update 1.35
Almost two years since the last update... Here's the list of changes:Instructions on how to cite PIVlab in your publication (in the menu: 'Referencing / Help'). This will be updated again as soon as my...
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PhD thesis finished
Received a couple of printed books of my dissertation today. Yaaaay!I'll add a link to the PIVlab chapter asap when the University of Groningen has uploaded the pdf to their repository.
View ArticlePIVlab short paper out
Thielicke, W. and Stamhuis, E.J. 2014. PIVlab – Towards User-friendly, Affordable and Accurate Digital Particle Image Velocimetry in MATLAB. Journal of Open Research Software 2(1):e30, DOI:...
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PIVlab chapter online
Here is the link to the PIVlab chapter from my PhD thesis:http://dissertations.ub.rug.nl/FILES/faculties/science/2014/w.thielicke/Chapter2.pdfFull...
View ArticleForum added
Hi, due to the increasing amount of PIVlab users and questions, I enabled a forum in this blog where questions can be asked. I am hoping that this can act as a central place for all comments and...
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Matlab R2014b compatibility donation
Mathworks changed a lot in their latest Matlab release (R2014b), making it incompatible with PIVlab 1.35 (and probably many other toolboxes). I'd like to make it compatible, but I need access to Matlab...
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