| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Properties of the Collision Efficiency of Nanoparticles in Brownian Coagulation |
| WANG Yu-Ming1, LIN Jian-Zhong1,2**, CHEN Zhong-Li2
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1Institute of Fluid Mechanics, China Jiliang University, Hangzhou 310018
2Department of Mechanics, Zhejiang University, Hangzhou 310027
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| Cite this article: |
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WANG Yu-Ming, LIN Jian-Zhong, CHEN Zhong-Li 2011 Chin. Phys. Lett. 28 014702 |
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Abstract The collision efficiency of nanoparticles with diameters from 100 nm to 750 nm in the Brownian coagulation is studied by building and solving numerically the equations of particle collision in the presence of the van der Waals force, the elastic deformation force, the Stokes resistance, the lubrication force and the electrostatic force. The results show that the collision efficiency decreases overall with the increasing particle diameter. It is found that there exists an abrupt increase in the collision efficiency when the particle diameter equals 550 nm. Finally a new expression for the collision efficiency is presented.
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| Keywords:
47.61.Jd
47.55.df
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Received: 02 August 2010
Published: 23 December 2010
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