کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
652521 885023 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement and correlation of friction characteristic of flow through foam matrixes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Measurement and correlation of friction characteristic of flow through foam matrixes
چکیده انگلیسی

A correlation of friction characteristic was developed based on the measured pressure drop of air through foam matrixes. The pressure drops of seven types of aluminum foams with different porosities and pore densities were measured. The Reynolds number based on the equivalent spherical diameter of the foam ranged from 32.05 to 1289.32. The range of porosity was 0.87–0.958. A empirical equation was developed to correlate the dimensionless pressure drop with the dimensionless flow velocity for all seven types of aluminum foams. The empirical correlation agreed well with experimental data. According to the empirical correlation and the measured data, the pressure drop introduced by foam matrixes was much lower than that by granular matrixes at the same Reynolds number. The relationship between the friction factor and Re   of foam matrixes follows the trend of granular matrixes and can be classified into three regimes: Re<30,fk∝1-εRe;30300, the value of fk approaches 0.22.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 30, Issue 4, March 2006, Pages 329–336
نویسندگان
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