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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
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
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 7–8, April 2007, Pages 1238–1247
نویسندگان
A. Yamagishi, T. Inaba, Y. Yamaguchi,