کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
658825 | 1458087 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mixing and convection driven by particles settling in temperature-stratified ambients
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
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چکیده انگلیسی
We use numerical simulations and analytical modeling to describe the long-term effects of settling particles on a temperature-stratified fluid. In particular, we examine the final state of the stratification and determine under what circumstances a stratification can be mixed by settling particles. We use a two-dimensional model, for computational efficiency, and find a criterion describing when fluid motions around settling particles result in significant mixing. Taking into account the potential of particles to act as heat carriers, we also find that if the particles carry sufficient heat to the bottom of the container, a stable stratification may be destabilized as the heat released by deposited particles triggers convective motions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 56, Issues 1â2, 1 January 2013, Pages 732-740
Journal: International Journal of Heat and Mass Transfer - Volume 56, Issues 1â2, 1 January 2013, Pages 732-740
نویسندگان
François Blanchette,