Detailed computational analysis has been carried out to study the flow and heat transfer features in a latticework structure under various flow configurations. The three flow configurations include the radial flow configuration (RFC), the cross flow configuration (CFC) and the turning flow configuration (TFC). The numerical approach is validated both qualitatively and quantitatively by the comparisons between the present numerical data and the experimental data in open literature. It is found that the flow configurations show significant influences on the heat transfer, pressure loss and flow structure features in the latticework subchannels. Under the same cooling mass flow rates, the RFC latticework shows the highest averaged Nusselt numbers and the highest pressure losses, and the CFC and TFC latticework obtain appreciably lower but similar averaged heat transfer performance with much reduced pressure loss. Under the same subchannel Reynolds numbers, the latticework channels with the three flow configurations show similar averaged heat transfer enhancement but different pressure loss characteristics. Under the same subchannel Reynold number, latticework channels, especially the TFC latticework, show better overall thermal performance than rib turbulated and pin fin channels. The numerical results indicate the TFC latticework channel shows less uniform heat transfer than the RFC and CFC latticeworks due to the nonuniform flow distribution. The present study indicates that different flow configurations produce different flow characteristics including the flow turnings and interactions among the subchannels, resulting in the unique heat transfer features in the latticework cooling structures.

已经进行了详细的计算分析，以研究各种流动配置下的格子结构中的流动和传热特征。三种流量配置包括径向流量配置（RFC），错流配置（CFC）和转向流量配置（TFC）。通过比较现有文献中的数值数据和实验数据，对数值方法进行了定性和定量验证。结果发现，流动构型对格构子通道中的传热，压力损失和流动结构特征显示出显着影响。在相同的冷却质量流量下，RFC网格显示出最高的平均Nusselt数和最高的压力损失，CFC和TFC晶格获得的平均传热性能明显降低，但相似，压力损失大大降低。在相同的子通道雷诺数下，具有三种流动配置的晶格通道显示出相似的平均传热增强效果，但压力损失特性不同。在相同的子通道雷诺数下，晶格通道，特别是TFC晶格，比肋状湍流通道和销翅片通道表现出更好的整体热性能。数值结果表明，由于流动分布不均匀，与RFC和CFC晶格相比，TFC晶格通道显示出的传热不均。本研究表明，不同的流动配置会产生不同的流动特性，包括流动转向和子通道之间的相互作用，