کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
655867 1457660 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large Eddy simulation of a droplet laden turbulent mixing layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Large Eddy simulation of a droplet laden turbulent mixing layer
چکیده انگلیسی

Large Eddy simulation (LES) is applied to a droplet laden turbulent mixing layer and the influence of shear, on the transport and preferential concentration of the dispersed phase is discussed. A Lagrangian formulation has been adopted for the particle dispersion coupled with an Eulerian description for the carrier gas. A stochastic model has been used to account for influence of the sub-grid scale motions of the continuous phase on the particle motion. Simulations conducted neglecting this sub-grid dispersion model show that the liquid dispersion is under predicted. However, when the sub-grid model is included the results show good agreement when compared with the experimental findings, demonstrating that the characteristics of the flow are well captured. A sensitivity analysis on the effect of the dispersion constants has been conducted, suggesting that increasing the contribution of the stochastic term, leads to a higher accumulation of smaller particles at the edge of the mixing layer.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 31, Issue 1, February 2010, Pages 93–100
نویسندگان
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