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纳米通道技术如今越来越多地在生活中得到应用,因此需要对流体在纳米通道内的流动机理有深入的研究。本文采用分子动力学的方法,对He气在纳米通道内的吸附情况进行了模拟研究。研究发现,温度、压力和纳米通道的材质对气体的吸附都有影响。较高的温度会降低气体在纳米通道内壁的吸附,降低压力也会减少气体在纳米通道内的吸附量,并且在Fe、Cu和Al这3种常规材料中,Cu纳米通道对气体的吸附能力最弱。模拟结果与相关实验结果吻合。
Nano-channel technology is nowadays more and more applied in life, so there is a need for further study on the flow mechanism of the fluid in the nano-channel. In this paper, molecular dynamics method was used to simulate the adsorption of He gas in nanochannels. The study found that the temperature, pressure and nano-channel material on the adsorption of gases have an impact. The higher temperature will reduce the gas adsorption on the inner wall of the nanochannel, and the decrease of the pressure will also reduce the amount of gas adsorbed in the nanochannel. In the three conventional Fe, Cu and Al materials, the adsorption capacity of the Cu nanochannel on the gas The weakest. The simulation results are consistent with the relevant experimental results.