Measurement of wall shear stress with a 55R45 sensor

Eduardo Rodríguez-López, Olivier Mantica, Paul JK Bruce, and Oliver RH Buxton

Department of Aeronautics, Imperial College London, SW7 2AZ London, United Kingdom.

This report describes and characterizes the mounting, operation, and behaviour of the wall shear stress sensor 55R45 applied to the flow in a turbulent boundary layer at moderate Reynolds numbers. Additionally, the results obtained will be compared with canonical trends and other kind of measurements of the mean shear stress to assess the accuracy of the measurements.