کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
657174 1458059 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation on water deteriorated turbulent heat transfer regime in vertical upward heated flow in circular tube
ترجمه فارسی عنوان
تحقیقات عددی در مورد آب رژیم انتقال حرارت آشفته در جریان عمودی به سمت بالا در لوله دایره ای را از بین می برد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی

Mixed convection in vertical upward heated flow has been intensively studied in the last few years since it reduces the heat transfer capability of the system in the deteriorated turbulent heat transfer (DTHT) regime. Several mixed turbulent heat transfer correlations have been proposed, but the best correlation to be used in DTHT regime for water in vertical upward heated flow is yet to be determined. Furthermore, the relation between momentum flux and heat flux in mixed convection regime is still unclear. This paper presents comparison of several mixed turbulent heat transfer correlations performance of water up-flow in a circular tube by numerical approach using v2–f turbulence model. The existing correlation of Symolon et al. showed the best agreement with the numerical analysis results in predicting the heat transfer capability of a water-cooled system while Petukhov and Polyakov correlation showed a good agreement to correlate the momentum and heat transport behavior in the mixed convection turbulent regime.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 83, April 2015, Pages 173–186
نویسندگان
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