کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
662960 1458154 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oscillatory double-diffusive mixed convection in a two-dimensional ventilated enclosure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Oscillatory double-diffusive mixed convection in a two-dimensional ventilated enclosure
چکیده انگلیسی

By starting from a steady flow configuration based on the work of Deng et al. [Qi-Hong Deng, Jiemin Zhou, Chi Mei, Yong-Ming Shen, Fluid, heat and contaminant transport structures of laminar double-diffusive mixed convection in a two-dimensional ventilated enclosure, Int. J. Heat Mass Transfer 47 (2004) 5257–5269], a numerical investigation was conducted to analyse the unsteady double-diffusive mixed convection in two-dimensional ventilated room due to heat and contaminant sources. Owing to the large number of parameters, the results are reported only for a constant buoyancy ratio N equal to 1. The flow is found to be oscillatory for a fixed Reynolds number (700 ⩽ Re ⩽ 1000) when the Grashof number is varied in a wide range (103 ⩽ Gr ⩽ 106). Results of the simulations show that the onset of the oscillatory indoor airflow occurs for couples (Re, Gr) values that can be correlated as Re = aGrb.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 23–24, November 2007, Pages 4540–4553
نویسندگان
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