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Single-camera, three-dimensional particle tracking velocimetry

Kevin Peterson, Boris Regaard, Stefan Heinemann, Volker Sick
2012 Optics Express  
The optical components used for SC3D-PTV are similar to those used for two-camera stereoscopic-µPIV, but are adapted to project two simultaneous images onto a single image sensor.  ...  results obtained with stereoscopic PIV, and without the reconstruction of an instantaneous 3D particle field.  ...  supported through the University of Michigan-Fraunhofer Alternative Energy Technologies for Transportation program and The University of Michigan-General Motors Collaborative Research Laboratory on Engine Systems  ... 
doi:10.1364/oe.20.009031 pmid:22513613 fatcat:zslgz36zkbdzbm3xmihomvhtxm

Development of a high-speed UV particle image velocimetry technique and application for measurements in internal combustion engines

Claudia Fajardo, Volker Sick
2008 Experiments in Fluids  
The high-speed PIV system consisted of frame-straddling CMOS camera (TSI HS2000) and a dual-head Nd:YLF laser that supplied a maximum of 12 mJ at 527 nm and 2 kHz. Also recently, Jarvis et al.  ...  CHAPTER 7 HIGH-SPEED UV PIV USING A TWO LASER-ONE CAMERA SYSTEM The experimental setup and results from a high-speed PIV technique using a single-laser, single-camera arrangement and 355 nm excitation  ... 
doi:10.1007/s00348-008-0535-z fatcat:vk5w3tymuzfdhjvq33towptpxu

Aerodynamic and functional consequences of wing compliance [chapter]

Andrew M. Mountcastle, Thomas L. Daniel
2010 Animal Locomotion  
We used digital particle image velocimetry at exceptionally high temporal resolution (2,100 fps) to assess the influence of wing compliance on the mean advective flows, relying on a natural variation in  ...  Real moth wings were subjected to robotic actuation in their dominant plane of rotation at a natural wing beat frequency of 25 Hz.  ...  ., and a National Science Foundation Graduate Research Fellowship to A.M.  ... 
doi:10.1007/978-3-642-11633-9_25 fatcat:imq55lbodjg27h7cvgagi4clzm

15th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF)

1993 Computers & Fluids  
Ron Dykhuizen of Sandia National Laboratories first informed us of the highly dependent nature of acoustic speed in water in a pipe on the elasticity of the pipe walls.  ...  ACKNOWLEDGEMENT The authors wish to thank A. L. Schneider and E. Bacher for their help and useful suggestions throughout this work.  ...  A commercial PIV system is used to provide near real time feedback of the acquired PIV image data quality, which facilitates the expedient acquisition of PIV image data.  ... 
doi:10.1016/0045-7930(93)90012-x fatcat:5un7rizd3jcblmj2fgh5rciy3a

"Phase diagram" for viscoelastic Poiseuille flow over a wavy surface

Simon J. Haward, Jacob Page, Tamer A. Zaki, Amy Q. Shen
2018 Physics of Fluids  
a micro-particle image velocimetry (µ-PIV) system (TSI, Inc.).  ...  Research, Inc.), operating in the frame-straddling mode.  ... 
doi:10.1063/1.5057392 fatcat:gj5nmsu6efhkrlpbmxboh6sdca

Novel and Inexpensive Three-dimensional Velocimetry Techniques for Flows Visualization and Measurements

Andres A. Aguirre-Pablo
2018
We expand this work to a high-speed time-resolved setup to obtain 3D-3C velocity fields in time.  ...  A benchmark of the smartphone system is carried out comparing it to a Tomo-PIV system capable of recording 4K video resolution.  ...  Frame straddling and color combinations could allow us to increase our effective frame rate.  ... 
doi:10.25781/kaust-5a171 fatcat:t66j25rs4rcfnme46udqh45gsm

Optimised multi-stream microfluidic designs for controlled extensional deformation

Konstantinos Zografos, Simon J. Haward, Mónica S. N. Oliveira
2019 Microfluidics and Nanofluidics  
The former is used to generate a stagnation point flow allowing molecules to accumulate significant strain, which has been found very useful for performing elongational studies.  ...  In this study, we optimise two types of multi-stream configurations (a T-junction and a flow-focusing design) to generate a homogeneous extensional flow within a well-defined region.  ...  Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creat iveco mmons .org/licen ses/by/4.0/), which permits unrestricted use,  ... 
doi:10.1007/s10404-019-2295-x fatcat:iiaazppwufc5bk5ski6mcgwaeq

Collective motion

Tamás Vicsek, Anna Zafeiris
2012 Physics reports  
Some emphasis is put on models that are simple and realistic enough to reproduce the numerous related observations and are useful for developing concepts for a better understanding of the complexity of  ...  systems consisting of many simultaneously moving entities.  ...  Writing this review was made possible in part by a grant from EU ERC No. 227878-COLLMOT. A.Z. is very grateful to Elias Zafiris for his help during the preparation of the manuscript.  ... 
doi:10.1016/j.physrep.2012.03.004 fatcat:qmnmww5lurhqrikozq674wtcce

Multiscale investigation of silica and carbonate sands under monotonic and cyclic loading [article]

Yining Teng
2018
A pressure transducer manufactured by Barksdale Inc. is used to measure the real-time pressure in the vessel as feedback to the pressure control system.  ...  A 5-megapixel camera allowing a maximum frame rate of 15 frame/s at full resolution was used (Allied Vision Tech. Prosilica GC2450C).  LED panels (CCS Industries Ltd.  ... 
doi:10.26182/5c329df10d6bc fatcat:wafzs7toirehhmyje22t4u2ppq

Experimental Measurements Of Far Field Cough Airflows Produced By Healthy And Influenza-Infected Subjects

Nicholas Dudalski, Ahmed Mohamed, Eric Savory, Samira Mubareka
2018 Progress in Canadian Mechanical Engineering   unpublished
High-speed imaging of various violent expirations was recorded with 1-4 kHz frame rate using high-speed video system.  ...  The study of the dynamics of aerosol particles in sneezing and coughing was conducted by using a digital high-vision, high-speed video system and vector analyses (Nishimura et al 2013) .  ...  ); end NfigsR=numel(dR); %Number of frames right tR=0:5/(NfigsR-1):5; NfigsL=numel(dL); %Number of frames left tL=0:5/(NfigsL-1):5; %%% We used the first frame to define x and y since they do ...not change  ... 
doi:10.25071/10315/35362 fatcat:kyghm5e5fzffhl36qw4hyiawoi

Unraveling advanced compression ignition combustion using optical diagnostics [article]

Zegers, RPC (Ron), Goey, LPH (Philip) De, Luijten, CCM (Carlo), Dam, NJ (Nicolaas)
2012
High-speed PIV setup The HS-PIV setup consists of an EdgeWave IS8II-DE double-cavity high-speed Nd:YAG laser and a Vision Research Phantom V7.1 high-speed CMOS camera, triggered by a LaVision high-speed  ...  For HS-PIV experiments the frame straddling technique is used, where one cavity is fired at the end of a certain frame and the other cavity at the beginning of the next frame.  ...  The temperature distribution can be obtained with the calibration relation. where R is the LIF ratio distribution and BS(x, y) is the correction for beam splitter, which is only used in one-side configuration  ... 
doi:10.6100/ir734708 fatcat:unjrtu3s5nauxie2xvcbunbdne

Development of aluminum-based coatings produced by Cold Gas Dynamic Spraying

Eric Sansoucy, Université D'Ottawa / University Of Ottawa, Université D'Ottawa / University Of Ottawa
2013
Two different particle in-flight velocity measurement tools, a Cold Spray Meter (CSM) and a Particle Image Velocimetry (PIV) system, are compared based on their operating characteristics and limitations  ...  In CGDS, fine particles are accelerated in a high velocity gas flow and undergo solid-state plastic deformation upon impact on the substrate.  ...  The Imager Pro camera uses a two frame-straddling technique and is capable of achieving a minimum time separation of 0.2 jxs (200 ns) [104] .  ... 
doi:10.20381/ruor-19777 fatcat:4b4hltzs5zeuroyhnlj7s5osva

Re-discovering the archival mission: The recordkeeping functional requirements project at the University of Pittsburgh, a progress report

Richard J. Cox
1994 Archives and Museum Informatics  
This systems demonstrated the metadata resident in a micro-computer database application.  ...  Are we at the point of a real paradigm shift, such as described by Thomas Kuhn, that is, just how widely shared is this new paradigm and, just as important, can there be a real shift ifit is isolated to  ...  It was suggested that a more overt use of the media could reap substantial benefits.  ... 
doi:10.1007/bf02770380 fatcat:2eqdnrjirrcrzfmdygiq2qsex4

2006 Colloquium & Annual General Meeting

ABSTRACTS GREENWICH, NOVA SCOTIA
2006 Atlantic geology  
Fractures, fi lled with quartz, calcite, and hematite, cross the main foliation at a high angle.  ...  Here, auriferous arsenopyrite-pyrrhotite ± pyrite veins occur within a hydro thermally altered zone that overprints and lies within a zone of high ductile-brittle strain.  ...  The data gained by assigning a time frame to the wood of an unknown date has signifi cantly strengthened the regional chronology for the tree species used in construction.  ... 
doi:10.4138/2157 fatcat:uv2xfxviwferdeopprso3bcrgm

Key note presentations, 10th Arctic Ungualate Conference, Tromsø, Norway, 1999

Editor in Chief
2000 Rangifer  
A Rangifer Special Issue with workshop papers is planned for publication later in 2000.  ...  The Conference also included a Circumpolar PhD-Network in Arctic Environmental Studies (CAES) workshop: "Reindeer 2000", attended by 47 participants presenting 25 student contributions, 5 keynote lectures  ...  Most of my experience comes from a nine month stay with the Number One Reindeer Brigade, a mixed Evenki and Dolgan reindeer hunting and herding collective in the Taimyr Autonomous District Siberia in 1993  ... 
doi:10.7557/2.20.2-3.1478 fatcat:vmz6vqp4njcrnlhuip2oi4yvsm
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