کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661071 1458162 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chaotic analysis of mixing enhancement in steady laminar flows through multiple pipe bends
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Chaotic analysis of mixing enhancement in steady laminar flows through multiple pipe bends
چکیده انگلیسی

Using numerical simulations, properties of the flow and heat transfer in multiple pipe bends composed of 90°-bends are investigated for various switching angles, and the mixing performance is compared by means of various trajectory-based analyses. Although the behavior of both the secondary flow and Nusselt number show a periodic feature, they do not completely correspond with each other. The Lyapunov exponent quantitatively exhibits a distinct difference in the mixing depending on the switching angle, while the Poincaré map depicts a specific aspect even in a long-term. The residence time distribution is a potential indicator reflecting the flow structure with time-information.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 7–8, April 2007, Pages 1238–1247
نویسندگان
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