کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
663213 1458158 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of local thermal non-equilibrium on impulsive conduction in porous media
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
The effect of local thermal non-equilibrium on impulsive conduction in porous media
چکیده انگلیسی

We examine the effect of local thermal non-equilibrium on the evolution of the stagnant temperature field in a semi-infinite porous medium. When local thermal equilibrium pertains, the temperature field which is induced by a step change in the temperature of a plane boundary is given by the classical conduction solution involving the complementary error function. When thermal local equilibrium does not apply, then conduction takes place more rapidly in one phase than in the other, although local thermal equilibrium is always approached as time increases. This note examines the evolution of the temperature field in each phase in detail using numerical methods, and the numerical solutions are supplemented by asymptotic solutions valid for both small and large times.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 15–16, July 2007, Pages 3244–3249
نویسندگان
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