The effect of temperature fluctuations on hot-wire measurements in wall turbulence and their correction

Authors: Talamelli, A., Malizia, F., Cimarelli, A, Örlü, R., Schlatter, P.
Document Type: Conference
Pubstate: Published
Journal: Progress in Turbulence VI, Springer Proceedings in Physics, Proceedings of the iTi Conference in Turbulence 2014
Volume: 165   185-189
Year: 2016


The effect of temperature fluctuations—as they are e.g. encountered in non-isothermal flows—on the mean, variance and spectra in wall-bounded turbulent flows when utilising hot-wire anemometry has recently been documented. The present work extends these efforts on the effect of temperature fluctuations on the skewness and flatness factors as well as assesses the performance of commonly employed temperature compensations.