کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
661332 | 1458169 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The onset of longitudinal vortex rolls in the thermal entrance region of plane Poiseuille flow heated with a constant heat flux
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
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چکیده انگلیسی
The onset of longitudinal vortex rolls in the thermal entrance region of plane Poiseuille flow heated from below with a constant heat flux is investigated theoretically. In the present study, the Boussinesq equations are solved numerically by using the finite volume method to analyze the onset of secondary flow. The local growth rates of the mean temperature and its fluctuations are examined, and the three characteristic distances, which are those to exhibit the onset of intrinsic instability, the detection of secondary flow, and the minimum Nusselt number under mixed convection, are suggested. They are discussed in comparison with available experimental data for water and air.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 49, Issues 19â20, September 2006, Pages 3708-3716
Journal: International Journal of Heat and Mass Transfer - Volume 49, Issues 19â20, September 2006, Pages 3708-3716
نویسندگان
Joung Hwan Park, Tae Joon Chung, Eun Suk Yun, Min Chan Kim, Chang Kyun Choi,