Turbulence Modelling 20 - Surface Roughness in log law of the wall part iii nikuradse paper
9Petroleum Downstream Crash Course Playlist:
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OpenFOAM for Windows 10 Beginner Playlist
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OpenFOAM Intermediate Playlist
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Radiation Heat Transfer Learning Journal:
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Turbulence Modelling Playlist
https://www.youtube.com/watch?v=F_Rxv9uMM3g&list=PLhPfNw4V4_YSnbYkJIBQ1kRN06Mmxe2Be
Law of the Wall (wikipedia)
https://en.wikipedia.org/wiki/Law_of_the_wall
Accounting for wall roughness effects in turbulence models : a wall function approach
https://www.eucass.eu/doi/EUCASS2017-372.pdf
The sand grain height hs is an estimate of surface roughness.
How does this relate to the surface roughness (epsilon) in moody chart?
To correlate both, we can see the Nikuradse paper
https://ntrs.nasa.gov/search.jsp?R=19930093938
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930093938.pdf
Moody Chart Engineering Toolbox
https://www.engineeringtoolbox.com/moody-diagram-d_618.html
Another Moody Chart by Neutrium
https://neutrium.net/fluid_flow/pressure-loss-in-pipe/
https://neutrium.net/wp-content/uploads/2012/05/010004_Img1.png
Surface Roughness Typical Value Engineering Toolbox
https://www.engineeringtoolbox.com/surface-roughness-ventilation-ducts-d_209.html
Thermopedia Article on Surface Roughness
http://www.thermopedia.com/content/789/