کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
656558 1458050 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal conductivity correlations of open-cell foams: Extension of Hashin-Shtrikman model and introduction of effective solid phase tortuosity
ترجمه فارسی عنوان
همبستگی های هدایت حرارتی فوم های باز سلولی: گسترش مدل هشین-شتریکمن و معرفی فرسایش فاز جامد فاز
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this process, the Hashin-Shtrikman (HS) bounds model was first extended and applied to the resistor model. A correlation term, Ω was introduced to take into account the thermal conductivities of constituent phases and the morphological parameters of the foam structure. Secondly, a more complex effective model that is a combination of series and parallel models was derived by introducing effective solid phase tortuosity. Lastly, a simple model (KT-model) was derived that can be used to predict either effective thermal conductivity or intrinsic solid phase conductivity depending upon which one of these quantities is known. The present study clearly demonstrates that the proposed empirical correlations yield extremely accurate estimates of the effective thermal conductivity for all the experimental and numerical data of different foam materials reported in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 92, January 2016, Pages 539-549
نویسندگان
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