Laminar fluid flow and heat transfer through a circular tube having spiral ribs and twisted tapes

被引：41

作者：

Pal, Sagnik ^{[1
]}

Saha, Sujoy Kumar ^{[1
]}

机构：

[1] Bengal Engn & Sci Univ Shibpur, Dept Mech Engn, Howrah 711103, India

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2015年 / 60卷

关键词：

Laminar forced convection; Integral spiral rib roughness; Twisted tapes with oblique teeth; Heat transfer enhancement; Swirl flow; PRESSURE-DROP CHARACTERISTICS; FRICTION FACTOR CHARACTERISTICS; INTEGRAL HELICAL CORRUGATIONS; TRANSFER ENHANCEMENT; TRANSVERSE RIBS; TURBULENT-FLOW; VISCOUS OIL; RECTANGULAR DUCTS; SQUARE DUCTS; THERMOHYDRAULICS;

D O I：

10.1016/j.expthermflusci.2014.09.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The experimental friction factor and Nusselt number data for laminar flow of viscous oil through a circular duct having integral spiral rib roughness and fitted with twisted tapes with oblique teeth have been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that the twisted tapes with oblique teeth in combination with integral spiral rib roughness perform significantly better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain value of fin parameter. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：173 / 181

页数：9

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