Experimental investigation of the evaporation rate of supercooled water droplets at constant temperature and varying relative humidity

Experimental Investigation of Water Droplet Phase Change in Humidi-fied Air Flow

“…1). is created/drawn in a basis of image recognition methodology [53]. The methodology used for the video frame processing is shown in Fig.…”

“…The primary experimental results for droplets evaporation in low-temperature air was summarized in work [16]. Further experiments had shown that, for water [10,[17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] et. all., for fuels and other liquids [34][35][36][37][38][39][40][41][42][43][44][45][46][47] the evaporation of a droplets takes place in a wide range of boundary conditions when taking into account the influence of environmental characteristics and the heat transfer boundary conditions of the droplets.…”

“…The heat and mass transfers processes of a water droplets have been experimentally investigated in different boundary conditions: while evaporation in the gas flows [17][18][19][20][21], in contact with surfaces [22,23], in icing nucleation [24] and crystallization [25], in the freezing of a cold surface [26][27][28][29], and in various emulsions [30][31][32]. The research of heating and evaporation of a water droplet overflown by air flow is presented in the work [21].…”

An improved lumped model for freezing of a freely suspended supercooled water droplet in air stream

“…In this sense, the mathematical modeling of the freezing mechanism is particularly useful for proper design and satisfactory performance of "icephobic" surface modifications for aeronautical sensors and components [1][2][3]. Freezing of supercooled droplets, either suspended (or flowing) in a gaseous environment or brought in contact with a cold substrate, has been studied before, and some of these previous works are here reviewed [4][5][6][7][8][9][10][11][12][13]. The freezing process of a supercooled droplet can be described in four distinct stages.…”

“…A number of recent research efforts dealt with experimental investigations for supercooled droplet freezing, and concentrated on developing theoretical models for this phenomenon and applying semi-analytical or numerical techniques. For instance, Ruberto et al [5] experimentally investigated freely suspended supercooled water droplets by using a levitation technique, when a single droplet was trapped in a test chamber. The authors investigated droplet sizes around 50 μm so as to approach the magnitude of droplet diameters appearing in clouds.…”