کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1864894 1037763 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of thermal conduction in single-bubble cavitation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Role of thermal conduction in single-bubble cavitation
چکیده انگلیسی

Effect of thermal conduction on radiation from a single cavitating bubble has been studied in a hydrochemical framework including variation of heat conductivity of noble gases up to 2500 K. Results of numerical simulation show that thermal conductivity plays an important role in determining ultimate cavitation temperature. Higher thermal conductivity of lighter noble gases causes to more thermal dissipation during the bubble collapse, leading to a lower peak temperature. Moreover, at the same driving conditions, radius of light emitting region is greater for heavier noble bubbles. Therefore, sonoluminescence radiation is more intensive from heavier noble gases. Phase diagrams of single-bubble sonoluminescence have also been calculated and in comparison with available experimental data, there is a relatively good agreement between the theory and experiment for noble gases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 372, Issue 8, 18 February 2008, Pages 1283–1287
نویسندگان
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