Measuring temperature of the ice surface during its formation by using infrared instrumentation |
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| Affiliation: | 1. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400 076, India;2. School of Engineering, University of British Columbia, 1137 Alumni Avenue, Kelowna, BC V1V 1V7, Canada;1. Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Shanghai 201804, China;2. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;3. State Key Laboratory for Nonlinear Mechanics, Beijing 100190, China |
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| Abstract: | A non-destructive remote sensing technique was used to measure the surface temperature of a thin macroscopic water film flowing on a growing asymmetric ice accretion during its formation inside an icing research wind tunnel. Given the underlying thermodynamic conditions of this experimental series, the recorded surface temperature was always below the temperature of water fusion, Tm = 273.15 K, even when water shedding from growing ice accretions was observed visually. The surface temperature of ice accretions, Ts, ranged from −1 °C, for angular positions near the stagnation line, down to a certain minimum above the ambient temperature, Ta, for the greater angular positions, i.e. Tm > Ts > Ta. |
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