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Molecular Dynamics Study on Nanoparticle Collision and Coalescence

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Book cover Dynamics of Nanoparticles in Stagnation Flames

Part of the book series: Springer Theses ((Springer Theses))

Abstract

Chapters 2 and 3 study nanoparticle dynamics at the flow field level. In this chapter, we will go deeper to particle level with the help of molecular dynamics (MD) simulation method. Conventional theories on particle dynamics, for instance collision kinetics from aerosol field and sintering laws from ceramics field, could not be directly extended to nanoparticles without proper consideration of size effects. First, some forces become long-ranged as particle size gets small and thus important for nanoparticle dynamics. Second, as the surface-to-volume ratio increases, the impact of surface forces and energy on the whole system dramatically increases. Third, the high surface curvature largely alters the crystalline properties of nanoparticles, e.g., melting point. All these factors have great influences on particle dynamics and hence drive a lot of attention in both academics and industry.

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  1. Department of Thermal Engineering, Tsinghua University, Beijing, China

    Dr. Yiyang Zhang

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Zhang, Y. (2017). Molecular Dynamics Study on Nanoparticle Collision and Coalescence. In: Dynamics of Nanoparticles in Stagnation Flames. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53615-5_4

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