基于平衡分子动力学模拟方法,研究壁面原子与流体原子之间不同的作用势能对纳米通道中二元流体形态和传热特性的影响。对于Ar-Kr流体,Kr原子由于壁面和周围流体原子的作用均匀分散形成混合流体,并且热导率较纯Ar流体略有增大;而对于Ar-Cu流体,Cu原子依靠自身强大的作用聚集在一起形成悬浮流体,其热导率较纯Ar流体增加一个数量级。由此可见,不同势能的原于在纳米通道中的存在形式和所引起的流体传热特性不同。 Based on the equilibrium molecular dynamics simulation method, the effect of different potential energy between wall atoms and fluid atoms on the morphology and heat transfer characteristics of binary fluids in nanochannels was studied. For Ar-Kr fluid, the Kr atom is uniformly dispersed to form a mixed fluid due to the action of the wall surface and the surrounding fluid atoms, and the thermal conductivity slightly increases compared to the pure Ar fluid. For the Ar-Cu fluid, the Cu atoms accumulate by their own powerful action Together to form a suspension fluid, its thermal conductivity than the pure Ar fluid to increase an order of magnitude. It can be seen that the different potential energy originally exists in the nanochannels and the fluid heat transfer characteristics are different.