Liquid cooling is an effective method for thermal management of high-power battery packs. A number of studies have shown that the general methods to enhance heat transfer performance by increasing flow rate will significantly increase pump power consumption. Here, in order to reduce the pump power consumption while enhancing heat transfer, the mini V-shaped ribs is used to optimize the structure of the liquid cold plate. The flow and heat transfer characteristics of square, triangular, semicircular and trapezoidal cross-section V-shaped ribs are investigated. The main results show that the Nusselt Number and Friction Factor of channel with V-shaped ribs are higher than those of smooth channel and the channel with straight rib. Additionally, compared with other rib structures, the V-shaped rib with triangular cross-section can reach the same heat transfer performance under smaller flow rate and pump power consumption. It is also found that the near wall hot fluid is stripped by the V-shaped ribs, so that the cold fluid in the mainstream can directly exchange heat with the wall, in addition, the twisted tape vortex caused by V-shaped rib can inhibit the development of the sidewall boundary layer.

液体冷却是对大功率电池组进行热管理的有效方法。大量研究表明，通过增加流速来提高传热性能的一般方法将显着增加泵的功耗。在此，为了在增强传热的同时减少泵的功率消耗，使用了微型V形肋来优化液体冷却板的结构。研究了方形，三角形，半圆形和梯形截面的V形肋的流动和传热特性。主要结果表明，V形肋通道的努氏数和摩擦系数均高于光滑通道和直肋通道的努氏数和摩擦系数。此外，与其他肋骨结构相比，具有三角形横截面的V形肋可以在较小的流量和泵功耗的情况下达到相同的传热性能。还发现近壁的热流体被V形肋剥离，主流中的冷流体可以与壁直接进行热交换，此外，V形肋引起的扭曲带涡旋可以抑制侧壁边界层的发展。