کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660687 1458147 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical study of periodically fully-developed convection in channels with periodically grooved parts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Numerical study of periodically fully-developed convection in channels with periodically grooved parts
چکیده انگلیسی

The periodicity of convection heat transfer in channels with periodically grooved parts is studied numerically using an unsteady-state model. The governing equations are discretized using SIMPLE algorithm with a QUICK scheme. The computational results show that there exists a critical Reynolds number, above which the fluid flow and heat transfer will exhibit time-dependent behavior and will oscillate more frequently at higher Reynolds number. When the oscillation takes place, the instantaneous phenomenon of the convection is not periodically fully developed, but the average behaviors of the convective heat transfer show the characteristics of periodically fully-developed flow and heat transfer.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 11–12, June 2008, Pages 3057–3065
نویسندگان
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