Skin friction velocity gradients calculated for Elsenaar-Boelsma flow
in tunnel coordinates.

Station        x location            d(q tau)/ dx         d(q tau)/dz
number         of the station

1              0.494999945          -0.696585894          0.614789248
4              0.794999957          -1.86229610           0.930150509
5              0.894999981          -1.76730347           0.970052183
6              0.994999945          -1.70285416           0.861874878
7              1.09499931           -1.49573898           0.527438283
8              1.19499969           -0.520334184          0.101678312
9              1.29499912            0.297259092          0.666402400
10             1.39499950            0.706064701          0.948772132