کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9691140 | 1457688 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of bubble-top jet flow during subcooled boiling on wires
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High-speed photography and laser PIV (particle image velocimetry) technology were employed to investigate subcooled boiling, particularly bubble dynamics on ultrathin platinum wires. Bubble-top jet flows were experimentally observed and theoretically analyzed. The flow field around bubbles and in the jet flows was obtained by PIV. Velocity of jet flows above bubbles in experiments ranged from 15Â mm/s to 140Â mm/s. A numerical model was proposed to simulate the bubble-top jet flows and agreed very well with the experimental data. The theoretical and experimental evidences indicate that Marangoni effect plays a very important role in forming and driving the jet flows, while both natural convection and vapor condensation are demonstrated to have very little effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 26, Issue 3, June 2005, Pages 485-494
Journal: International Journal of Heat and Fluid Flow - Volume 26, Issue 3, June 2005, Pages 485-494
نویسندگان
H. Wang, X.F. Peng, D.M. Christopher, W.K. Lin, C. Pan,