Год издания: 2018
Идентификатор DOI: 10.1007/978-3-319-75523-6_5
Аннотация: By definition, nanoflows are flows in channels with a characteristic size (height of a plane channel or diameter of a cylindrical channel) smaller than (or equal to) one hundred nanometers. Depending on the cross-sectional configuration, nanochannels are usually classified as follows. A plane channel is a 2D channel and has only one nanosize (distance between the plates); it is also called a nanoslit. There are also cylindrical nanochannels (1D). Short cylindrical nanochannels are often called nanopores. These flows have been studied for about forty years. However, up to now, there were no algorithms that would permit us to model real nanoflows. In addition, in recent years, many new problems have appeared in this area. To solve these problems, we need correspondent techniques. In this chapter, we propose new molecular dynamics algorithms, which allow one to simulate a real plane Poiseuille-type flow characterized by a certain pressure gradient, and discuss specific features of plane flows in nanochannels. This is the subject of the first four sections of the chapter. In Sects. 5.5 and 5.6, the self-diffusion of the fluid molecules in nanochannel and in porous media is studied. Finally, the last section deals with modeling the separation of nanofluids through the use of nanomembranes. © 2018, Springer International Publishing AG, part of Springer Nature.
Журнал: Fluid Mechanics and its Applications
Выпуск журнала: Vol. 118
Номера страниц: 185-215
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