<div><p>The txt files are output from the DaVis 8 software program, using Stereoscopic PIV (particle image velocimetry) mode. This software computes the velocity vectors (given in the txt files) from digital video captured in a fluid flow The full DaVis 8 steroscopic PIV process is described in the documentation provided by LaVision GMBH. Key processing parameters are recorded in the file “notes.txt” in the root directory. </p></div>
Velocity fields from turbulence tank, with analysis performed to describe its turbulence characteristics.
<div><p>This dataset is available as a large.zip file (1.8 GB compressed; 3.5 GB uncompressed) available for <a href="/objectserver/bec03e66868ff5e8eeac26a041f4d64d/Final_Turbulence_analysis.zip?url=http%3A%2F%2Fdmoserv3.bco-dmo.org%2Fdata%2FDiatomTrajectories%2FFinal_Turbulence_analysis.zip&f=3037323466386161393063343530393463393630316631643464346334313562687474703a2f2f646d6f73657276332e62636f2d646d6f2e6f72672f646174612f446961746f6d5472616a6563746f726965732f46696e616c5f54757262756c656e63655f616e616c797369732e7a6970">Download</a> (WARNING: LARGE FILE). Each folder represents a different experiment. In the folders are:</p>
<p>1) A series of txt files, each of which describes 1 independent sample of a 3D velocity vector field measured in an x-y plane in the turbulence tank. The data is 5-column tab-delimited data:<br />
Column 1 is x-location of velocity measurement (in mm, and defined relative to origin at the tank’s geometric center)<br />
Column 2 is y-location (in mm)<br />
Column 3 is x-component of velocity vector (in m/s)<br />
Column 4 and 5 are y- and z-components of velocity vector, respectively (in m/s)</p>
<p>2) A *.mat file, including the same data as above, but arranged into an LxMxN matrix, in which L is x-location, M is y-location, and N is number of independent samples. Velocity components are called UU,VV, and WW. The x- and y- values are called xvals and yvals. This file is constructed from the *.txt files using the *.m file found in the root directory “view_and_organize_vectors_from_Darling.m”</p>
<p>3) Eight *.png figures that summarize the turbulent features of velocity fields.</p>
<p>4) A *.dat file giving some key statistics describing the turbulent features of velocity fields. This file is constructed from the *.mat files using the *.m file found in the root directory “analyze_vectors_from_Darling.m”</p></div>
PIV data - final turbulence tank analysis
<div><p>All processing to this data is explained in the two commented *.m-files in the root directory.</p></div>
564816
PIV data - final turbulence tank analysis
2015-08-27T14:33:15-04:00
2015-08-27T14:33:15-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:564816
Velocity fields from turbulence tanks, with analysis performed to describe its turbulence characteristics analyzed at University of California - Berkeley (DiatomTrajectories project)
false
Variano, E., Karp-Boss, L., Jumars, P. (2015) Velocity fields from turbulence tanks, with analysis performed to describe its turbulence characteristics analyzed at University of California - Berkeley (DiatomTrajectories project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2015-07-31) Version Date 2015-07-31 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/564816 [access date]
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2015-07-31
false
2015-07-31
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