کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
669503 1458747 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Convective heat transfer by a row of jets impinging on a concave surface
ترجمه فارسی عنوان
انتقال گرما همراه با یک ردیف از جت هایی که روی سطح مقعر قرار می گیرند
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The attention of the present work is focused on the heat transfer between a concave surface and a row of air jets impinging on it. Measurements are performed with the heated thin foil heat transfer sensor using IR thermography as temperature transducer. Experimental tests are carried out by varying jets inclination, pitch, impinging distance, Mach and Reynolds numbers. Data is reduced in dimensionless form in terms of the Nusselt number and analyzed by separately accounting for the influence of the main relevant parameters. As main results, 3D Nusselt maps show presence of stream-wise vortices driven by surface curvature, jet inclination and jet pitch. At last, the Nusselt number, averaged over the impinged area, is represented as a function of the Reynolds number following a data correlation present in literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 75, January 2014, Pages 153-163
نویسندگان
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