Collision Efficiency of Two Nanoparticles With Different Diameters in the Brownian Coagulation

WANG Yu-ming; LIN Jian-zhong

doi:10.3879/j.issn.1000-0887.2011.08.006

Volume 32 Issue 8

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WANG Yu-ming, LIN Jian-zhong. Collision Efficiency of Two Nanoparticles With Different Diameters in the Brownian Coagulation[J]. Applied Mathematics and Mechanics, 2011, 32(8): 956-963. doi: 10.3879/j.issn.1000-0887.2011.08.006

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Collision Efficiency of Two Nanoparticles With Different Diameters in the Brownian Coagulation

doi: 10.3879/j.issn.1000-0887.2011.08.006

WANG Yu-ming¹,
LIN Jian-zhong^1,2

Institute of Fluid Measurement and Simulation, China Jiliang University, Hangzhou 310018, P. R. China;
State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, P. R. China

Received Date: 2011-01-18
Rev Recd Date: 2011-06-10
Publish Date: 2011-08-15

Abstract

Abstract

Collision efficiency of two nanoparticles with different diameters in the Brownian coagulation was investigated.The collision equations were solved to obtain the collision efficiency for the dioctyl phthalate nanoparticle with diameter changing from 100nm to 750nm in the presence of van der Waals force and elastic deformation force.It is found that the collision efficiency decreases as a whole with the increase of both the particle diameter and radius ratio of two particles.There exists an abrupt increase in the collision efficiency when the particle diameter is equal to 550 nm.Finally a new expression for the collisio n efficiency of two nanoparticles with different diameters was presented.
- nanoparticles,
- Brownian coagulation,
- collision efficiency,
- different diameter,
- van der Waals force,
- elastic force

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References(17)

References

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