Numerical simulations of nanoparticle migration in a fully developed turbulent pipe flow are *** evolution of particle number concentration,total particle mass,polydispersity,particle diameter and geometric standard d...
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Numerical simulations of nanoparticle migration in a fully developed turbulent pipe flow are *** evolution of particle number concentration,total particle mass,polydispersity,particle diameter and geometric standard deviation is obtained by using a moment method to approximate the particle general dynamic *** effects of Schmidt number and Damkhler number on the evolution of the particle parameters are *** results show that nanoparticles move to the pipe *** particle number concentration and total particle mass are distributed non-uniformly along the radial *** an initially monodisperse particle field,the particle clusters with various sizes will be produced because of *** time progresses,the particle cluster diameter grows from an initial value at different rates depending on the radial *** largest particle clusters are found in the pipe *** particle cluster number concentration and total particle mass decrease with the increase of Schmidt number in the region near the pipe center,and the particles with lower Schmidt number are of many dif-ferent sizes,*** *** particle cluster diameter and geometric standard deviation increase with the increase of Damkhler number at the same radial *** migration properties for nano-sized particles are different from that for micro-sized particles.
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