کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
667197 1458509 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling of two-phase flow in porous media with heat generation
ترجمه فارسی عنوان
مدل سازی جریان دو فاز در رسانه های متخلخل با تولید گرما
کلمات کلیدی
جریان دو مرحله ای، بستر بقایای، خشک کردن، منطقه مرزی نیروی اصطکاک،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The main purpose of this work is investigation of coolability of a boiling debris bed. The main governing equations are derived using volume averaging technique. From this technique some specific interfacial areas between phases are appeared and proper relations for modeling these areas are proposed. Using these specific areas, a modification for the Tung/Dhir model in the annular flow regime is proposed. The proposed modification is validated and the agreements with experimental data are good. Finally, governing equations and relations are implemented in the THERMOUS program to model two-phase flow in the debris bed in the axisymmetric cylindrical coordinate. Two typical configurations including flat and mounted beds are considered and the main physical phenomena during boiling of water in the debris bed are studied. Comparing the results with the one-dimensional analysis shows higher specific power of the bed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Multiphase Flow - Volume 69, March 2015, Pages 115-127
نویسندگان
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