کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
659774 1458109 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of interfacial heat exchange on thermocapillary flow in a cylindrical liquid bridge in microgravity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Effect of interfacial heat exchange on thermocapillary flow in a cylindrical liquid bridge in microgravity
چکیده انگلیسی

The effect of interfacial heat exchange on thermocapillary flow in a cylindrical liquid bridge of 1 cst silicone oil (with Prandtl number 16.0) with aspect ratio 1.8 in microgravity, was investigated in an extended range of Biot number. With both constant and linearly distributed ambient temperature, the computed results predict that the marginal stability curve for the thermocapillary flow exhibits a roughly convex trend. In the range of small Biot number, however, a sharp local maximum exists with a special oscillation mode of azimuthal wave number m = 0, in contrast to the other cases with m = 1. In addition, the normalized “thermal” energy balance between the basic state and the critical perturbation of the thermocapillary flow was investigated. Finally, the effect of the interfacial heat exchange on the thermocapillary flow in a liquid bridge of low Prandtl number fluid in microgravity was investigated as a comparison.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 9–10, April 2011, Pages 1698–1705
نویسندگان
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