کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4992402 1457261 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study of vortices and cavities from single and double drop impacts onto deep pools
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Experimental study of vortices and cavities from single and double drop impacts onto deep pools
چکیده انگلیسی
In the present work, experimental investigations of single and double drop impacts into a deep pool of the same liquid are presented. For the first time, vortex interactions of two synchronised spherical drops of equal size are presented and compared to the evolution of undisturbed vortex rings generated by single drop impacts. High-speed images show novel and not yet documented vortex structures. The results show that vortex rings can be generated for drop Weber numbers well above the boundaries given in the literature, but with a different structure. Reynolds numbers of the relaminarised vortex rings depend on the presence of an outer vortex ring and are found to be significantly lower, if this structure was suppressed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - B/Fluids - Volume 62, March–April 2017, Pages 21-31
نویسندگان
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