A fast-response probe for the measurement of total temperature in unsteady or fluctuating compressible flows is discussed. The operation of the device is based on the measurement of transient heat flux at different probe operating temperatures. The heat flux gauges used in the present investigation were thin film platinum resistance thermometers painted onto the stagnation region of hemispherical fused quartz probes. The quartz probes had a diameter of approximately 3 mm. Uncertainty estimates indicate that temperature measurements with an accuracy of better than ± 3 K are possible. As a demonstration of the accuracy and utility of the device, total temperature and convective heat transfer coefficient measurements were obtained in a number of supersonic nozzle tests, and in a compressible turbulent jet experiment.
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ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition
June 10–13, 1996
Birmingham, UK
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7876-7
PROCEEDINGS PAPER
A Fast-Response Total Temperature Probe for Unsteady Compressible Flows
D. R. Buttsworth,
D. R. Buttsworth
University of Oxford, Oxford, UK
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T. V. Jones
T. V. Jones
University of Oxford, Oxford, UK
Search for other works by this author on:
D. R. Buttsworth
University of Oxford, Oxford, UK
T. V. Jones
University of Oxford, Oxford, UK
Paper No:
96-GT-350, V005T15A026; 11 pages
Published Online:
February 6, 2015
Citation
Buttsworth, DR, & Jones, TV. "A Fast-Response Total Temperature Probe for Unsteady Compressible Flows." Proceedings of the ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General. Birmingham, UK. June 10–13, 1996. V005T15A026. ASME. https://doi.org/10.1115/96-GT-350
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