模型与RNG k--ε模型分别对三种不同进电方式(四点进电的200 kA槽、两点进电的160 kA槽以及三点进电的80 kA槽)的预焙阳极Al电解槽内的Al液流场进行了数值仿真, 并且应用铁棒溶蚀法对相应工况下的Al液流场进行了工业测试. 通过对计算结果和测试结果的比较与分析,可以得出：与标准k--ε模型相比较, 低Reynolds数模型具有较小的湍流粘度；标准k--ε模型与RNG模型用于Al液流场的数值仿真时, 其计算结果均有较高的可靠性. 并初步得出在电流强度大于80 kA的Al电解槽中, Al液流动的计算不适宜应用低Reynolds数模型.
Standard k--ε,low Reynolds' number Jones--Launder k--ε and RNG models were adopted to simulate the flow field of metal melt in three different prebaked anode cell designs, i.e.80 kA cell with three anode risers, 160 kA cell with two anode risers and 200 kA cell with four side anode risers. Moreover, the melt velocities were measured using iron rod dissolution method. The simulating results were discussed and were compared with measuring data. It is shown that the turbulent viscosity in low Reynolds' number model is smaller than that in standard k--ε model. Standard k--ε and RNG model predict better the flow field of metal melt. Furthermore, the preliminary conclusion is that the low Reynolds' number model is not suitable to calculate metal melt flow in cells if the current is greater than 80 kA.
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