This code will compare experimental data to the simulated data on Delft3D.
The data calculated with Delft3D using the 18m x 4m x 2m flume. The turbine used is a horizontal axis and has a swept area diameter of 0.7m. Identical to the one used to collect the experimental data. The thrust coefficient is set to 0.72 and power coefficient to 0.45.The discretization is 0.2m at the outer corners of the flume and 0.1m around the turbine placed at (6,3) as shown in the figure:
The map.nc file is located here Delft3D_verify/Data/river/d3d and the project files are located in the Delft3D_verify folder under the same file path Simulated Data
The experimental data was collected during a flume test as documented in this citation. The nondimensionalized data is documented in this paper:
P. Mycek, B. Gaurier, G. Germain, G. Pinon, and E. Rivoalen, “Experimental study of the turbulence intensity effects on marine current turbines behavior. Part I: One single turbine,” Renew. Energy, vol. 66, pp. 729–746, 2014, doi: 10.1016/j.renene.2013.12.036.
The velocity and turbulence intensity data is available in text files located in the file path Delft3D_verify/Data/river/flume_experiment/ or Experimental Data.
Here is an example of re-dimensioning the experimental data. Nondimensionalized Centerline Data for a flume with 15% Turbulent Intensity at the inlet:
Velocity 15% inlet TI
u* y* Downstream
0.51 0 1.2
0.595 0 2
0.788 0 3
0.862 0 4
0.911 0 5
0.913 0 6
0.927 0 7
0.953 0 8
0.965 0 9
0.954 0 10
Equations to dimensionalize:
(u*)flow rate = raw velocity (ex:0.8 m/s)
y=0 at center of flume
Downstream*diameter of turbine(ex:0.7)= meters downstream