کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7056546 1458052 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam
ترجمه فارسی عنوان
شبیه سازی عددی در حالت مقیاس پوسته و حجم در انتقال حرارت فاز ذوب در فوم فلزی متخلخل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The melting process of phase change material (PCM) infiltrated in a finned metal foam was numerically investigated using two approaches: (a) pore-scale and (b) volume-averaged numerical simulations. The pore-scale simulation modeled the intricate geometry of the open-cell metal foam using sphere-centered tetrakaidecahedron and coupled the heat transfer in foam/fin solids with that in the PCM. The volume-averaged simulation used the Darcy-Brinkman-Forchheimer model to account for the motion of melt PCM as well as the one-temperature model based on local thermal equilibrium assumption. The volume-averaged simulation results were compared with the pore-scale simulation results which were used as the benchmark. Reasonable agreement between prediction results of the two approaches was observed. When using the volume-averaged method, the one-temperature model may be applicable without needing the more complicated two-temperature model. The thermal performance of the finned metal foam was compared with conventional plate-fin and metal foam structures, demonstrating its superiority as thermal conductivity enhancer of PCM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 90, November 2015, Pages 838-847
نویسندگان
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