In the present work, coupled effects of forced convection, rotational conic surface and magnetic field on the phase change dynamics are numerically explored by using finite element method for a phase change material (PCM) filled 3D cylindrical reactor. The PCM filled region has a conic shape and it is rotating. The study is conducted for various values of rotational Re number (between 0 and 2500), magnetic field strength (Hartmann number between 0 and 30) and conic surface aspect ratio (between 1 and 2). It is observed that the coupled interactions between the rotational surface and magnetic field significantly affect the phase change process dynamics and convective heat transfer between different phases. Optimum value of rotational Reynolds number for minimum complete phase transition time is achieved at Rew = 1000. The magnetic field has a positive impact on the phase change process while it is impact is profound without surface rotation. There are 98% and 65% reductions in the complete phase transition times when configurations at Rew = 1000 are compared with motionless conic surface case in the absence and presence of magnetic field. The effects of rotation are profound when different aspect ratios of the PCM filled region is considered. The transition time is increased up to 553% without rotation while this value is only 86% when cases with lowest and highest aspect ratio are compared. A modal analysis with 30 mode is used to capture the phase change dynamics and coupled interactions between the rotational surface and magnetic field on the variation of liquid fraction.

在目前的工作中，通过对相变材料 (PCM) 填充的 3D 圆柱形反应器使用有限元方法，数值研究了强制对流、旋转圆锥面和磁场对相变动力学的耦合影响。PCM 填充区域具有圆锥形状并且正在旋转。该研究针对旋转 Re 数（0 到 2500 之间）、磁场强度（0 到 30 之间的哈特曼数）和圆锥表面纵横比（1 到 2 之间）的各种值进行。观察到旋转表面和磁场之间的耦合相互作用显着影响相变过程动力学和不同相之间的对流传热。在 Rew = 1000 时实现最小完整相变时间的最佳旋转雷诺数值。磁场对相变过程有积极的影响，而在没有表面旋转的情况下，它的影响是深远的。有 98当 Rew = 1000 的配置与无磁场和有磁场的静止圆锥表面情况相比时，完整相变时间减少%和 65 %。当考虑 PCM 填充区域的不同纵横比时，旋转的影响是深远的。在没有旋转的情况下，过渡时间增加到 553 %，而在比较具有最低和最高纵横比的情况时，该值仅为 86 %。使用 30 模态的模态分析来捕捉相变动力学以及旋转表面和磁场之间对液体分数变化的耦合相互作用。