纳米流体是近几年才出现的概念,它是纳米粒子和液体介质共存的一种悬浮液。纳米流体高导热性研究为提高能源利用效率提供了一种新的解决方案,已经成为研究者关注的热点。主要介绍了纳米流体的制备和3种提高纳米流体稳定性的方法;探讨了纳米流体黏度的变化规律以及黏度对传热的影响;阐述了纳米流体在传热和传质领域中的应用;最后提出了纳米流体研究中尚需解决的问题,并对纳米流体的应用前景进行了展望。
As a concept that emerges in recent years,nanofluid is a kind of suspension liquid,in which nanoparticles and fluid media coexist.The study on the high thermal conductivity of nanofluid which provides a new solution to improve efficiency of energy utilization has become a research focus that many researchers pay great attention to.Nanofluid preparation methods and three methods to ensure nanofluid stability were introduced.The change law of nanofluid viscosity and the effects of viscosity on heat transmission were discussed.Then,applications of nanofluid in the fields of heat transmission and mass transfer were elaborated.At last,problems that should be solved in the study of nanofluid were proposed,and an outlook for application prospect of nanofluid was provided.
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基金资助
国家自然科学基金资助项目(31470590)
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