Journal article

Design and validation of a nanoscale cross-wire probe (X-NSTAP)

Matthew K Fu, Yuyang Fan, Marcus Hultmark

Experiments in Fluids | Springer (part of Springer Nature) | Published : 2019


A nano-sized crossed thermal anemometer (X-NSTAP) was developed and validated for measurements of two-components of velocity at high Reynolds numbers. The new sensor design is based on the single-component nanoscale thermal anemometry probe (NSTAP) previously used to acquire streamwise velocity measurements at high Reynolds numbers. The new sensor can, simultaneously, measure two components of velocity with a spatial resolution of 42×42×50μm , an order of magnitude smaller in each dimension than conventional cross-wires. The new X-NSTAP design features several structural and manufacturing modifications to improve the aerodynamic performance of the sensor compared to previous nanoscale cros..

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University of Melbourne Researchers


Awarded by NSF

Awarded by Office of Naval Research (ONR)

Funding Acknowledgements

This work was supported by under NSF Grant CBET-1510100 (program manager Ron Joslin) and the Office of Naval Research (ONR) Grant N00014-17-2309. M. K. F. was supported by the Department of Defense (DoD) through the National Defense Science and Engineering Graduate Fellowship (NDSEG) Program. The authors would like to thank Dan Hoffman and Janik Kiefer for their assistance in aligning and assembling the Princeton Superpipe facility and instrumentation. The authors would especially like to thank Prof. Alexander Smits for his indispensable insight and assistance. All probes were manufactured in the Micro/Nano Fabrication Laboratory (MNFL) at Princeton University.