کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7052796 1457459 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamics of pressure drop oscillations during flow boiling inside minichannel
ترجمه فارسی عنوان
دینامیک نوسانات افت فشار در طی جریان جوش در داخل مینی کانال
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Dynamics of pressure drop oscillations during flow boiling inside minichannel with diameter of 1 mm was experimentally investigated. High speed camera was used to identify two-phase flow patterns. The chaotic pressure drop oscillations occurring with a low and high frequencies were observed. The analysis of the dynamics of chaotic pressure oscillations and recorded videos show that a certain dominant sequences of flow patterns can be identified. These sequences depend on the mean value of pressure drop. The map of dynamical properties of two-phase flow patterns was constructed using the windowed recurrence quantification analysis. The clusters on this map identified the four kinds of dominant sequences of flow patterns. These were: liquid flow - small bubbles flow - confined bubbles flow, small bubbles flow - slug flow - reverse slug flow, churn flow - wavy annular flow - reverse slug flow, churn flow - wavy annular flow. There has been shown that each dominant sequence of flow boiling can exist during a certain time period in the non-stationary flow boiling, therefore such sequence can be treated as temporary boiling pattern.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 95, July 2018, Pages 25-32
نویسندگان
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