The solidification of a binary mixture of ammonium chloride and water flow cooling in rectangular cavities was investigated experimentally under different boundary conditions. Two cavities measuring 63.5 X 180 X 165 mm and 76 X 120 X 96 mm were employed in this study. For the first cavity, its three surfaces (i.e., the bottom surface was adiabatic). The influence of the change of boundary was studied. All investigations were carried out in the surface temperature range from - 15 to - 30 deg C under a constant refrigerant temperature of -22 deg C. The effect of cooling boundary condition had a great effect on the heat transfer process during the solidification process. The advanced Particle Image Velocimetry (PIV) technique was used to catch the velocity profiles during the solidification process.
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机译：在不同的边界条件下，通过实验研究了氯化铵的二元混合物的固化和水在矩形腔中的流动。在本研究中，使用了两个分别为63.5 X 180 X 165 mm和76 X 120 X 96 mm的腔体。对于第一腔，其三个表面（即，底表面是绝热的）。研究了边界变化的影响。在-22摄氏度的恒定制冷剂温度下，在-15至-30摄氏度的表面温度范围内进行了所有研究。冷却边界条件的影响对凝固过程中的传热过程有很大影响。先进的粒子图像测速（PIV）技术用于在凝固过程中捕捉速度分布。
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