Turbulent boundary layer measurements around a NACA 4412 wing profile 
 
Details about the experiments can be found in: Mallor, F., Sanmiguel Vila, C., Hajipour, M., Vinuesa, R., Schlatter, P. and Örlü, R. (2025) Experimental characterization of turbulent boundary layers around a NACA 4412 wing profile. Exp. Therm. Fluid Sci. 160:111327. DOI: 10.1016/j.expthermflusci.2024.111327 
Contact scientist: Ramis Orlu, ramis.orlu@oslomet.no 
 
(Note that number decimal places does not indicate the accuracy of the data.) 
 
Date:  02-Dec-2024 
orig. case name: HW_AoA08_Re1M_xc40 
HW diameter [micron]:  2.5 
HW length [mm]: 0.7 
HW length in viscous units [-]: 58 
HW Overheat ratio [%]:  80 
sampling freq. [kHz]:  60 
analog filter [kHz]:  30 
Temperature [C]:  21.43 
atm. pressure [Pa]:  102130 
kin. viscosity [m^2/s]:  1.5068e-05 
Downstream position (x/c from leading edge) [-]: 0.4 
Reynolds Number based on chord (Re_c): 1000000 
Angle of attack (pos) [degrees]: 8 
Freestream vel. [m/s]:  43.6038 
Friction velocity [m/s]: 1.6811 
Viscous length scale [m]: 8.9633e-06 
 
Calculated values: 
Displacement thickness, d1 [m]: 0.00091313 
Momentum-loss thickness, d2 [m]: 0.00057819 
Boundary layer thickness (d99) [m]: 0.0041714 
Shape Factor (H_12): 1.579 
Re_theta:  1673 
Re_tau:   465 
Beta: 0.75407 
 
 
y [m]	U [m/s]	urms [m/s]
  0.00012757  17.32274258   8.67656702 
  0.00026371  22.29525803   9.14718151 
  0.00042005  24.69708361   8.56272313 
  0.00059795  26.38827210   8.39416423 
  0.00080198  27.98847042   8.39619004 
  0.00103363  29.65787334   8.40841088 
  0.00129767  31.33849261   8.16288570 
  0.00159936  33.08153495   7.80369196 
  0.00194282  34.94239621   7.21053814 
  0.00233593  36.86151742   6.30116425 
  0.00278279  38.85639355   5.09078635 
  0.00329377  40.84508909   3.56125377 
  0.00387578  42.65323710   1.84637952 
  0.00453900  43.80756536   0.53993471 
  0.00529677  44.17180237   0.12603027 
  0.00616025  44.15721112   0.05809405 
  0.00714556  44.06825741   0.03893617 
  0.00826995  43.99719807   0.03357633 
  0.00955185  43.93009545   0.03104487