Downloads data tables from the NIST Chemistry Webbook (http://webbook.nist.gov/chemistry/fluid/) for a specified temperature and/or pressure range. The tables are useful for plotting or for data lookup by interpolation.
Are Mjaavatten (2021). nistdata(species,T,p) (https://www.mathworks.com/matlabcentral/fileexchange/64578-nistdata-species-t-p), MATLAB Central File Exchange. Retrieved .
You are absolutely right, Alexandra. At some point I changed the unit read from NIST from micro Pa/s to Pa/s, but kept the old conversion factor. I seldom use transport properties, so this blatant error passed under the radar. Thank you for pointing this out. The new version (1.4) should be correct.
I think your unit conversions are incorrect. I am getting a viscosity on the order of 1e-11 Pa-s
Thanks to Martijn van Heumen for his constructive comment. The code has been updated accordingly in version 1.3.
The file did not work for me under R2018b. After replacing txt = webread(url); by options = weboptions('RequestMethod','get','ArrayFormat','csv','ContentType','text'); txt = webread(url,options); it works perfectly.
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