caa a22 4500 606197842 CHVBK 20210128100931.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00348-015-1918-6 doi (NATIONALLICENCE)springer-10.1007/s00348-015-1918-6 Fiber optic distributed temperature sensor mapping of a jet-mixing flow field [Elektronische Daten] [S. Lomperski, C. Gerardi, W. Pointer] This paper introduces the use of a Rayleigh backscatter-based distributed fiber optic sensor to map the temperature field in air flow for a thermal fatigue application. The experiment involves a pair of air jets at 22 and 70°C discharging from 136mm hexagonal channels into a 1×1×1.7m tank at atmospheric pressure. A 40m-long, ϕ155µm fiber optic sensor was wound back and forth across the tank midplane to form 16 horizontal measurement sections with a vertical spacing of 51mm. This configuration generated a 2D temperature map with 2800 data points over a 0.76×1.7m plane. Fiber optic sensor readings were combined with PIV and infrared measurements to relate flow field characteristics to the thermal signature of the tank lid. The paper includes sensor stability data and notes issues encountered using the distributed temperature sensor in a flow field. Sensors are sensitive to strain and humidity, and so accuracy relies upon strict control of both. The Author(s), 2015 Lomperski S. Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL, USA aut Gerardi C. Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL, USA aut Pointer W. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN, USA aut Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-16 0723-4864 56:3<1 2015 56 348 https://doi.org/10.1007/s00348-015-1918-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-1918-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lomperski S. Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL, USA aut NATIONALLICENCE 700 1- Gerardi C. Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL, USA aut NATIONALLICENCE 700 1- Pointer W. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN, USA aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-16 0723-4864 56:3<1 2015 56 348