The use of scalar transport probes to measure wall shear stress in a flow with imposed oscillations
Abstract
Recent studies of the influence of imposed oscillations on a turbulent flow have focused on the need for accurate measurements of the phase-averaged wall shear stress. Flush mounted wall transfer probes offer the opportunity of obtaining such results. However, considerable error can arise in interpreting these measurements (in particular, the phase of the wall stress relative to the phase of the imposed oscillations) if the time response of the scalar boundary-layer over the probe is not taken into account. This paper presents a method to correct measurements for this effect and applies it to the case of an oscillating turbulent flow.
- Publication:
-
Experiments in Fluids
- Pub Date:
- May 1985
- DOI:
- 10.1007/BF00280449
- Bibcode:
- 1985ExFl....3..129M
- Keywords:
-
- Flowmeters;
- Oscillating Flow;
- Shear Stress;
- Turbulent Flow;
- Wall Flow;
- Boundary Layers;
- Numerical Analysis;
- Phase Deviation;
- Stress Measurement;
- Fluid Mechanics and Heat Transfer