微通道平行流气冷器流量分配的数值模拟

Computational Fluid Dynamics Simulation of Flow Distribution in a Gas Cooler with Micro-channel Parallel Flow

通过采用计算流体力学(CFD)的方法,对微通道平行流气冷器内部流量分布特性进行了仿真研究.在改变气冷器的主要结构以及组合尺寸后所进行的CFD研究发现,扁管长度、进口集管与扁管组合尺寸以及出口集管与扁管组合尺寸对气冷器内部扁管之间的流量分配不均匀度有很大的影响,这对将来微通道平行流气冷器的设计优化具有重要意义.

Using computational fluid dynamics （CFD） simulation, flow distribution in a gas cooler with micro-channel parallel flow is studied. It is found that the penetration depth between inlet header and tube, the length of tube, and the penetration depth between outlet header and tube have influence on the flow maldistribution among tubes, which is significant to the design of microchannel parallel flow gas cooler.