3D numerical simulation of fluid flow and heat transfer enhancement in plastic elliptic oblique teeth flat strip tube

SHU Junjie; LI Qunsong; YU Tianlan; LIU Yuejin; PENG Deqi

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3D numerical simulation of fluid flow and heat transfer enhancement in plastic elliptic oblique teeth flat strip tube

更新时间：2025-12-10

- 3D numerical simulation of fluid flow and heat transfer enhancement in plastic elliptic oblique teeth flat strip tube
- CIESC Journal Issue 8, Pages: 1926-1931(2009)
- 作者机构：
  
  1. 湖南省化工职业技术学院,湖南,株洲,412004
  2. 湖南工业大学机械清洗研究所,湖南,株洲,412008
  3. 湘潭大学化工学院,湖南,湘潭,411105
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 August 2009，
  
  Published：05 August 2009
- 稿件说明：
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SHU Junjie, LI Qunsong, YU Tianlan, et al. 3D numerical simulation of fluid flow and heat transfer enhancement in plastic elliptic oblique teeth flat strip tube[J]. CIESC Journal, 2009, (8): 1926-1931.
DOI：

SHU Junjie, LI Qunsong, YU Tianlan, et al. 3D numerical simulation of fluid flow and heat transfer enhancement in plastic elliptic oblique teeth flat strip tube[J]. CIESC Journal, 2009, (8): 1926-1931. DOI：

摘要

利用Fluent 6.2及辅助软件对传热管内置带旋流口的塑料椭圆斜齿平带的流体流动及强化传热进行了计算机三维数值模拟，分析并比较了光管与有内置椭圆斜齿塑料平带的情况下管内流速、湍流度以及对流传热系数的分布改善情况。结果表明：平带管内流体的流动是以螺旋流动为主的复杂的三维流动;由于平带的扰流作用，使得平带管内流速、湍流强度得到了很大程度的提高，有效抑制了管内壁污垢的沉积，强化了传热，平带管内侧的平均传热系数较光管提高了45%，平带所带来的管路压降在工程许可的范围内，适用于流速低于0.8 m8226;s-1的换热器中。

Abstract

With the help of Fluent 6.2 and supporting softwares，computer 3D numerical simulation of fluid flow and heat transfer enhancement of plastic elliptical oblique teeth flat strip tubes with eddy port were performed，and the flow rate，turbulence intensity and improvement of convective heat transfer coefficient distribution in smooth tubes and plastic elliptic oblique teeth flat strip tubes were analyzed and compared.The results showed that the fluid flow in flat strip tubes was complicated three-dimensional flow，mainly swirling flow.With interference flow by flat strip，flow rate and turbulence intensity increased greatly.Fouling deposition around inner wall was effectively inhibited and heat transfer was enhanced.Compared with smooth tubes，average heat transfer coefficient inside flat strip tubes increased by 45%.The pressure drop caused by oblique teeth flat strip was in the permissible range of engineering application.It was suitable for the heat exchanger at a flow rate lower than 0.8 m8226;s-1.

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