کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4994673 1458037 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mass transfer mechanisms of rotary atomization: A numerical study using the moving particle semi-implicit method
ترجمه فارسی عنوان
مکانیزم انتقال توده از اتمسفر چرخشی: یک مطالعه عددی با استفاده از روش نیمه ضمنی ذرات متحرک
کلمات کلیدی
اتمسفر، حرکت ذرات روش نیمه ضمنی، اسپری روتاری، مخلوط، کارایی محاسباتی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
A particle-based meshless method, the moving particle semi-implicit (MPS) method, is employed in this study to simulate the process of liquid film breakup and atomization in a rotary atomizer. The computational framework incorporates a specially designed inlet flow model, a centrifugal force calculation, and a surface tension model to allow the simulation of the unsteady flow with extreme deformations. To improve efficiency, the searching algorithm of the MPS method is modified by eliminating redundant calculations. The computational framework is further utilized to systematically study the transition of the liquid from the bulk phase to a film, then to multiple belts, and finally to numerous droplets under the low pressure and flow rate conditions in the rotary atomization. Key mass transfer mechanisms underlying the atomization process are elucidated by a comprehensive analysis of the flow trajectories. The computational work is expected to improve the fundamental understanding of the rotary atomization process and facilitate future process optimization efforts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 105, February 2017, Pages 90-101
نویسندگان
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