کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7059017 1458085 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural convection heat transfer from three vertically arranged horizontal cylinders with dissimilar separation distance at moderately high Rayleigh numbers
ترجمه فارسی عنوان
انتقال حرارتی طبیعی از سه ستون افقی مرتب شده با عمق با فاصله جدایی غیرمستقیم در تعداد رایلی زیاد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Results from an experimental investigation of natural convection heat transfer from a vertical array of three evenly heated horizontal cylinders, with dissimilar cylinder spacings, is presented. Nusselt numbers are presented for Rayleigh numbers 1.96E7 and 5.35E7 with separation distances 2D, 3D, 4D, and 5D. The results show that the Nusselt number on the second cylinder, in the three-cylinder array, increases compared to the lowermost cylinder for both Rayleigh numbers investigated and all four separation distances. The Nusselt number for the upper cylinder in the array increases compared to the lowermost/unconfined cylinder, but is comparable to the middle cylinder for the separation distances investigated. Enhanced heat transfer due to turbulent mixing on the upper cylinders in the array is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 57, Issue 2, February 2013, Pages 519-527
نویسندگان
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