The numerical simulation of the horizontal solidification of pure tin under natural convection and under forced convection induced by Electromagnetic Stirring (EMS) is presented and compared with experimental results obtained by the ‘AFRODITE’ benchmark setup, described in several previous publications [6–10]. The experiment consists in solidifying a rectangular ingot (100 × 10 × 60 mm) using two lateral heat exchangers which allow the application of a controlled horizontal temperature difference. The experimental temperature difference between the two lateral sides of the sample DT = 40 K and the cooling rate CR = −0.03K/s. Under these conditions the solidification front is planar throughout the experiment. Enthalpy formulation based on fixed-grid techniques is used for the numerical simulations of the phase-change problems, accounting for buoyancy convection and forced convection created by Lorentz forces generated by an external Traveling Magnetic Field (TMF). The temperature distribution obtained by numerical simulation is demonstrated to effectively reproduce the temperature maps obtained from the experimental measurements. The proposed 3D numerical model has demonstrated its effectiveness in predicting the effect of EM stirring on the solidification process in terms of thermal field, dynamic field and the shape and localization of the solidification front.

介绍了纯锡在自然对流和电磁搅拌（EMS）引起的强制对流下水平凝固的数值模拟，并将其与“ AFRODITE”基准装置获得的实验结果进行了比较，该结果在先前的几篇出版物中已有描述[6-10] 。该实验包括使用两个横向热交换器固化一个矩形锭（100×10×60 mm），该热交换器允许施加可控制的水平温差。样品DT的两个侧面之间的实验温差 = 40 K，冷却速率CR = -0.03K / s。在这些条件下，整个实验过程中的凝固前沿都是平坦的。基于固定网格技术的焓公式用于相变问题的数值模拟，考虑了由外部行进磁场（TMF）产生的洛伦兹力产生的浮力对流和强制对流。通过数值模拟获得的温度分布证明可以有效地再现从实验测量获得的温度图。所提出的3D数值模型已经证明了其在热场，动态场以及凝固前沿的形状和位置方面预测EM搅拌对凝固过程的影响的有效性。