Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11490
Title: Large eddy simulation of a planar jet flow with nanoparticle coagulation
Authors: Yu, M
Lin, J
Chen, L
Chan, T 
Keywords: Coagulation
Coherent structure
Large eddy simulation
Nanoparticles
Planar jet
Issue Date: 2006
Publisher: Springer
Source: Acta mechanica Sinica, 2006, v. 22, no. 4, p. 293-300 How to cite?
Journal: Acta mechanica Sinica 
Abstract: Coagulation and growth of nanoparticles subject to large coherent structures in a planar jet has been explored by using large eddy simulation. The particle field is obtained by employing a moment method to approximate the nanoparticle general dynamic equation. An incompressible fluid containing particles of 1 nm in diameter is projected into a particle-free ambient. The results show that the coherent structures dominate the evolution of the nanoparticle number intensity, diameter and polydispersity distributions as the jet develops. In addition, the coherent structures act to increase the diffusion of particles, and the vortex rolling-up makes the particles distributing more irregularly while the vortex pairing causes particle distributions to become uniform. As the jet travels downstream, the time-averaged particle number concentration becomes lower in the jet core and higher in the outskirts, whereas the time-averaged particle mass over the entire flow field maintains unaltered, and the time-averaged particle diameter and geometric standard deviations grow and reach their maximum on the interface of the jet region and the ambient.
URI: http://hdl.handle.net/10397/11490
ISSN: 0567-7718
EISSN: 1614-3116
DOI: 10.1007/s10409-006-0011-z
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