کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
789588 1466445 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Freezing mechanism of supercooled water droplet impinging on metal surfaces
ترجمه فارسی عنوان
مکانیسم انجماد قطرات آب فوق سرد با برخورد بر روی سطوح فلزی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی

Ice accretion on power lines is a random natural phenomenon and may seriously harm to the safety of power network. However, the mechanism of the freezing process of supercooled water droplet impacting on wires is still not fully understood. In this study, an experimental investigation on the freezing mechanism of the supercooled water droplet impinging on cold metal surfaces was performed. The morphological characters and the dynamics of a single supercooled droplet collide on the cylindrical metal surfaces had been revealed with high-speed photographing. The experimental data for the surfaces of stainless steel, copper and aluminum, on which the supercooled droplets impinging with speeds of 2.3 m s−1 and 4.3 m s−1 had been plotted. The phenomena of instantaneous and non-instantaneous freezing of the supercooled impinging droplet were identified and the conditional boundaries for these two kinds of freezing were found statistically.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 34, Issue 8, December 2011, Pages 2007–2017
نویسندگان
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