New Expression for Collision Efficiency of Spherical Nanoparticles in Brownian Coagulation

CHEN Zhong-li; YOU Zhen-jiang

doi:10.3879/j.issn.1000-0887.2010.07.006

Volume 31 Issue 7

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CHEN Zhong-li, YOU Zhen-jiang. New Expression for Collision Efficiency of Spherical Nanoparticles in Brownian Coagulation[J]. Applied Mathematics and Mechanics, 2010, 31(7): 812-821. doi: 10.3879/j.issn.1000-0887.2010.07.006

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New Expression for Collision Efficiency of Spherical Nanoparticles in Brownian Coagulation

doi: 10.3879/j.issn.1000-0887.2010.07.006

CHEN Zhong-li¹,
YOU Zhen-jiang²

1.
State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, P. R. China;

Received Date: 1900-01-01
Rev Recd Date: 2010-06-01
Publish Date: 2010-07-15

Abstract

Abstract

The collision efficiency of dioctyl phthalate nanoparticles in the Brownian coagulation was studied. A set of collision equations were solved numerically to find the relationship between the collision efficiency and the particle radius varying from 50 nm to 500 nm in the presence of Stokes resistance, lubrication force, vander Waals force and elastic deformation force. The calculated results are in agreement with the expermiental ones qualitatively. The results show that the collision efficiency decreases with the increase of particle radius in the range of 50 nm to 500 nm. Based on the numerical data a new express ion for collision efficiency was presented.
- nanoparticles,
- Brownian coagulation,
- collision efficiency,
- Stokes resistance,
- lubrication force

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References(18)

References

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