Abstract We present three-dimensional numerical simulations to quantify the design specifications of a directed thermoplate expanded channel heat exchanger, also called dimpleplate. Parametric thermofluidic simulations were performed independently varying the number of spot welds, the diameter of the spot welds, and the thickness of the fluid channel within the laminar flow regime. Results from computational fluid dynamics simulations show an improvement in heat transfer is achieved under a variety of conditions: when the thermoplate has a relatively large cross-sectional area normal to the flow, a ratio of spot weld spacing to channel length of 0.2, and a ratio of the spot weld diameter with respect to channel width of 0.3. Experimental results performed to validate the model are also presented.

中文翻译：

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定向热板传热的实验和数值模拟

摘要 我们提出了三维数值模拟来量化定向热板扩展通道换热器（也称为凹坑板）的设计规格。参数化热流体模拟是独立进行的，改变点焊的数量、点焊的直径和层流状态内流体通道的厚度。计算流体动力学模拟的结果表明，在各种条件下都可以改善传热：当热板具有相对较大的垂直于流动的横截面积时，点焊间距与通道长度的比率为 0.2，以及点焊直径与通道宽度之比为 0.3。还提供了用于验证模型的实验结果。