A Guide to Uncertainty Analysis of Hot-Wire Data
- 1 June 1984
- journal article
- Published by ASME International in Journal of Fluids Engineering
- Vol. 106 (2) , 181-186
- https://doi.org/10.1115/1.3243096
Abstract
Uncertainty analysis of hot-wire data in turbulent flows are made for time-averaging and real-time data reduction techniques. Equations of uncertainty are derived in general form for every step of data taking and evaluation. Numerical examples are supplied for two-dimensional flat plate boundary layer data. Results show that the real-time data reduction techniques generally have a lower and much more uniform uncertainty distribution than the time-averaging techniques (whose uncertainties are much higher for the near-wall data).Keywords
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