کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
663080 1458156 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bubble jet flow formation during boiling of subcooled water on fine wires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Bubble jet flow formation during boiling of subcooled water on fine wires
چکیده انگلیسی

Both visual technology and numerical simulation were employed to investigate bubble jet flow formation during boiling of subcooled water on ultrathin platinum wires. Experimental observations and measurements indicated that bubble jet flow formation could be typically divided into three stages: waiting, burst and stably developing stage. A transient numerical model was proposed to simulate the formation process accounting for the thermocapillary force existing at the bubble interface. The dynamical temperature variation in the liquid region, including the regions of the mushroom head and root stem, were numerically analyzed, showing a very good agreement with the experimental observations. The simulation very well explored the physical nature of the dynamical evolution of bubble jet flows and explained the experimental phenomena.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 19–20, September 2007, Pages 3966–3976
نویسندگان
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