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    Eulerian-Lagranigan simulation of aerosol evolution in turbulent mixing layer

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    Type
    Article
    Authors
    Zhou, Kun cc
    Jiang, Xiao
    Sun, Ke
    He, Zhu
    KAUST Department
    Clean Combustion Research Center
    Date
    2016-09-23
    Online Publication Date
    2016-09-23
    Print Publication Date
    2016-10
    Permanent link to this record
    http://hdl.handle.net/10754/622195
    
    Metadata
    Show full item record
    Abstract
    The formation and evolution of aerosol in turbulent flows are ubiquitous in both industrial processes and nature. The intricate interaction of turbulent mixing and aerosol evolution in a canonical turbulent mixing layer was investigated by a direct numerical simulation (DNS) in a recent study (Zhou, K., Attili, A., Alshaarawi, A., and Bisetti, F. Simulation of aerosol nucleation and growth in a turbulent mixing layer. Physics of Fluids, 26, 065106 (2014)). In this work, Monte Carlo (MC) simulation of aerosol evolution is carried out along Lagrangian trajectories obtained in the previous simulation, in order to quantify the error of the moment method used in the previous simulation. Moreover, the particle size distribution (PSD), not available in the previous works, is also investigated. Along a fluid parcel moving through the turbulent flow, temperature and vapor concentration exhibit complex fluctuations, triggering complicate aerosol processes and rendering complex PSD. However, the mean PSD is found to be bi-modal in most of the mixing layer except that a tri-modal distribution is found in the turbulent transition region. The simulated PSDs agree with the experiment observations available in the literature. A different explanation on the formation of such PSDs is provided.
    Citation
    Zhou K, Jiang X, Sun K, He Z (2016) Eulerian-Lagranigan simulation of aerosol evolution in turbulent mixing layer. Applied Mathematics and Mechanics 37: 1305–1314. Available: http://dx.doi.org/10.1007/s10483-016-2134-9.
    Sponsors
    Project supported by the National Natural Science Foundation of China (Nos. 11402179 and 11572274)
    Publisher
    Springer Nature
    Journal
    Applied Mathematics and Mechanics
    DOI
    10.1007/s10483-016-2134-9
    Additional Links
    http://link.springer.com/article/10.1007%2Fs10483-016-2134-9
    ae974a485f413a2113503eed53cd6c53
    10.1007/s10483-016-2134-9
    Scopus Count
    Collections
    Articles; Clean Combustion Research Center

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