Numerical study of fluid flow and convective heat transfer characteristics in a twisted elliptic tube

被引：26

作者：

Kim, Hyung Rak ^{[1
]}

Kim, Sangkeun ^{[1
]}

Kim, Minsung ^{[1
]}

Park, Seong Hyun ^{[1
]}

Min, June Kee ^{[2
]}

Ha, Man Yeong ^{[1
]}

机构：

[1] Pusan Natl Univ, Sch Mech Engn, San 30, Busan 609735, South Korea

[2] Pusan Natl Univ, Technol Ctr Thermal Management, Rolls Royce & Pusan Natl Univ, San 30, Busan 609735, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2016年 / 30卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Twisted elliptic tube; Friction factor; Colburn j-factor; Goodness factor; LAMINAR-FLOW; STEADY; PIPES;

D O I：

10.1007/s12206-016-0127-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We investigated the flow and heat transfer characteristics in a Twisted elliptic tube (TET). The effects of geometry parameters such as the aspect ratio and number of rotations in the TET were analyzed comparatively using three-dimensional (3-D) numerical simulation. We also solved numerically the conservation equations of continuity, momentum, and energy in the TET. Fully developed flow in the TET was modeled using the realizable k-epsilon turbulence model and steady incompressible Reynolds-averaged Navier-Stokes (RANS) equations. The simulation was performed for Reynolds numbers of 100, 1000 and 10000. The pressure drop and the heat transfer of the TET were assessed in terms of the Darcy friction factor and Colburn j-factor, and overall performance was evaluated using the area and volume goodness factors.

引用

页码：719 / 732

页数：14

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