NOTE: Please cite Thakkar, M., Busse, A. & Sandham, N.D. Surface correlations of
hydrodynamic drag for transitionally rough engineering surfaces, Journal of Turbulence,
2016 (DOI: 10.1080/14685248.2016.1258119) in any publications that use this data.

Dataset name: data_2016JoT.zip

Dataset files (top level directory): Table2.csv, Table3.csv.

Dataset folders (top level directory): RoughnessHeightMaps (containing 17 files - s1.csv,
s2.csv, s3.csv, s4.csv, s5.csv, s6.csv, s7.csv, s8.csv, s9.csv, s10.csv, s11.csv,
s12.csv, s13.csv, s14.csv, s15.csv, s16.csv, s17.csv).

Dataset description: Table2.csv and Table3.csv contain the tabular data in Tables 2 and 3
from Thakkar, M., Busse, A. & Sandham, N.D., Journal of Turbulence, 2016.
The folder RoughnessHeightMaps contains roughness height maps for the 17 rough surface
samples. The roughness height map for each sample is represented by a grid where each
point depicts the roughness height at a given x and y coordinate. Since the grid is
uniform in the streamwise and spanwise directions, combined with the domain extents from
Table3.csv, each rough surface sample can be constructed. It is worth noting that the grids
representing construction of the surface samples are not the same as the corresponding
simulation grids. For example, the roughness height map for s1 (present in s1.csv)
contains 1800x900 points in the streamwise and spanwise directions and its computational
domain size is (13x6.5) times the channel half-height. This means that its x-coordinates
will be [0,Lx] discretised into nx points uniformly, where Lx = 13 and nx = 1800. The
y-coordinates will be [0,Ly] discretised into ny points uniformly, where Ly = 6.5 and ny
= 900. Hence the entire surface sample can be constructed. The same approach is used to
construct each of the 17 surface samples.

Data owners: 
Manan Thakkar, Aerodynamics and Flight Mechanics, Faculty of Engineering and
the Environment, University of Southampton, Southampton SO17 1BJ, UK.
Angela Busse, School of Enineering, University of Glasgow, Glasgow G12 8QQ, UK.

Associated investigators: Neil Sandham, Aerodynamics and Flight Mechanics, Faculty of
Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK.

Contact person: Manan Thakkar (mnt2g11@soton.ac.uk).

Related publications: Thakkar, M., Busse, A. & Sandham, N.D. Surface correlations of
hydrodynamic drag for transitionally rough engineering surfaces, Journal of Turbulence,
2016 (DOI: 10.1080/14685248.2016.1258119).