کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1717362 1520031 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oscillatory instabilities of two-layer Rayleigh–Marangoni–Benard convection
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Oscillatory instabilities of two-layer Rayleigh–Marangoni–Benard convection
چکیده انگلیسی

The Rayleigh–Marangoni–Bénard convective instability (R–M–B instability) in the two-layer systems such as Silicone oil (10cSt)/Fluorinert (FC70) and Silicone oil (2cSt)/water liquids are studied. Both linear instability analysis and nonlinear instability analysis (2D numerical simulation) were performed to study the influence of thermocapillary force on the convective instability of the two-layer system. The results show the strong effects of thermocapillary force at the interface on the time-dependent oscillations at the onset of instability convection. The secondary instability phenomenon found in the real two-layer system of Silicone oil over water could explain the difference in the comparison of the Degen's experimental observation with the previous linear stability analysis results of Renardy et al.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 59, Issues 1–5, July–September 2006, Pages 40–45
نویسندگان
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