کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
659896 | 1458117 | 2010 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical simulations of a second-order chemical reaction in a plane turbulent channel flow
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We analyze numerical simulations of a second-order chemical reaction (Da = 1) in a fully developed turbulent plane channel flow at a low Reynolds number (ReÏ = 180). The reactive plume is formed when a reactant A is released through a line source into the channel flow doped with reactant B. Two different inlet pre-mixing conditions and line source heights are considered. Direct Numerical Simulations (DNS) and Stochastic Fields (SF) methods have been used and compared for these different conditions. The results obtained using SF are sensitive to the particular value of the turbulent Schmidt number (ScT) selected to model the turbulent dispersion. It has been found that if a representative value of ScT extracted from DNS is used in the SF method, both DNS and SF, give similar results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 19â20, September 2010, Pages 4248-4263
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 19â20, September 2010, Pages 4248-4263
نویسندگان
Alexandre Fabregat, Jordi Pallarès, Ildefonso Cuesta, Francesc X. Grau,