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Journal of Applied Mechanics and Technical Physics

2017 year, number 5

Experimental Estimation of Evaporation Rates of Water Droplets in High-Temperature Gases

R. S. Volkov1, G. V. Kuznetsov1, V. E. Nakoryakov2, P. A. Strizhak1
1National Research Tomsk Polytechnic University, Tomsk, 634050 Russia
2Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: капля воды, высокотемпературные газы, испарение, скорость испарения, water droplet, high-temperature gases, evaporation, evaporation rate


Evaporation rates of water droplets in high-temperature gases were experimentally determined using high-speed video recording cameras and low-inertia thermocouples (for heated air flow as an example). The experiments were carried out for droplets of initial size (radius) of 1-3 mm at an air temperature 500-1000 K. Dependences of the evaporation rate of water droplets on time and gas temperature for various initial droplet sizes were obtained.