基于ANSYS Workbench的聚合物熔体孔芯式冷却结构数值模拟及优化

提出了一种结构强度大、冷流体流道独立密封的孔芯式冷却结构，采用数值模拟计算分析孔芯直径和孔芯数量两个主要结构参数对熔体冷却均化性能的影响规律，并利用综合评价指标计算得到了一定工艺条件下的最优结构参数值。研究结果表明：与孔芯数量相比孔芯直径对结构冷却均化性能的影响更加显著；适当减小孔芯直径、增大孔芯数量有助于减小孔芯结构的压力损失，提高孔芯结构的冷却均化性能；在固定外形尺寸且10 kg/h产量的工艺条件下，最优化结构参数值为孔芯直径6 mm，孔芯数量12。

Simulation and optimal design based on ANSYS Workbench of a core polymer cooler structure

The effect of varying the core diameter and the number of cores on the comprehensive performance of a core polymer cooler with large structural strength and independent sealing of cold fluid flow channels have been investigated by numerical simulation. The results show that the effect of varying the core diameter on the pressure drop and heat transfer performance is greater than that of varying the number of cores. Appropriately reducing the core diameter and increasing the number of cores both lead to improvements in the comprehensive performance of the polymer cooler. The optimal structural parameter values for a given external dimension and mass rate of 10 kg/h were obtained; the optimum core diameter was found to be 6 mm and the optimum number of cores was 12.