Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation

林建忠; 刘淞; 陈达良

doi:10.1016/S1004-9541(11)60235-8

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Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation

Updated：2026-01-06

- Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation
- Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation
- 中国化学工程学报（英文版） 2012年20卷第4期页码：679-685
- Affiliations：
  
  1. China Jiliang University,Hangzhou,China,310018
  2. State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University,Hangzhou,China,310027
  3. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon,Hong Kong,China
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60235-8
  中图分类号：
- 纸质出版：2012
- Accepted：
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林建忠, 刘淞, 陈达良. Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation[J]. 中国化学工程学报（英文版）, 2012,20(4):679-685.

LIN Jianzhong, LIU Song, CHAN Tatleung. Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation[J]. Chin.J.Chem.Eng., 2012, 20(4): 679-685.
林建忠, 刘淞, 陈达良. Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation[J]. 中国化学工程学报（英文版）, 2012,20(4):679-685. DOI： 10.1016/S1004-9541(11)60235-8.

LIN Jianzhong, LIU Song, CHAN Tatleung. Nanoparticle Migration in a Fully Developed Turbulent Pipe Flow Considering the Particle Coagulation[J]. Chin.J.Chem.Eng., 2012, 20(4): 679-685. DOI： 10.1016/S1004-9541(11)60235-8.

摘要

Abstract

Numerical simulations of nanoparticle migration in a fully developed turbulent pipe flow are performed.The 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 equation.The effects of Schmidt number and Damköhler number on the evolution of the particle parameters are analyzed.The results show that nanoparticles move to the pipe center.The particle number concentration and total particle mass are distributed non-uniformly along the radial direction.In an initially monodisperse particle field

the particle clusters with various sizes will be produced because of coagulation.As time progresses

the particle cluster diameter grows from an initial value at different rates depending on the radial position.The largest particle clusters are found in the pipe center.The 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 different sizes

i.e.

more polydispersity.The particle cluster diameter and geometric standard deviation increase with the increase of Damkhler number at the same radial position.The migration properties for nanosized particles are different from that for microsized particles.

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