基于CFD数值模拟蓄冷水箱性能研究

Research on performance of cold storage tank based on CFD numerical simulation

针对水箱高径比对水蓄冷性能影响进行研究。分析数值模拟结果发现:最大斜温层厚度随高径比的增加成正比增加;最大斜温层体积随高径比的增加而下降,下降的幅度逐渐减少;水箱面积随高径比增大的而减小,变化趋势与斜温层体积随高径比的变化趋势相似;斜温层体积与水箱面积之间成正比关系;当水箱高径比超过3时,水箱的最大斜温层体积趋于稳定,减小幅度有限。

The effect of the height-diameter ratio of water tank on the cold storage performance is studied.The results of numerical simulation show that the thickness of the maximum oblique layer increases with the increase of the height-diameter ratio.The volume of the maximum oblique layer decreases with the increase of the height-diameter ratio.The area of the water tank decreases with the increase of the ratio of height to diameter.The volume of the oblique thermal layer is proportional to the area of the water tank.When the height-diameter ratio of the water tank exceeds 3,the volume of the maximum oblique layer of the water tank tends to be stable with a limited reduction.