Publication on ProCap measurement strategy
Real-time Sensor Tracking Velocimetry (STV): Opportunities and challenges
with a human in the loop (HITL)
A comparison of Sensor Tracking Velocimetry (STV) with a Human in the Loop (HITL) with stereoscopic Particle Image Velocimetry (stereo PIV) data for a generic wind tunnel setup is presented. In STV, the human in the loop plays a central role in improving measurement efficiency while ensuring data quality. Two main measurement strategies for STV-HITL are assessed: a volumetric strategy for capturing global flow topology and a planar strategy for detailed analysis of specific planes. The impact of observing data quality measures at the time of the measurement and the spatial resolution of the fl ow fi eld reconstruction are discussed. The results emphasize that both an adapted measurement strategy and real-time quality feedback tools are crucial for concentrating measurement points in relevant areas and thus obtaining an accurate result. The selected resolution has a high impact on measurement time. In thin shear layers and near surfaces the accuracy is reduced by the method’s limit in spatial resolution. With measurement strategy and parameters carefully tailored to the specific requirements of the measurement task, the STV-HITL method can provide high-quality data in significantly less time compared to conventional methods like stereo PIV.
