Rectification Characteristics of Tab-Type Elbow Flow Conditioner

doi:10.7652/xjtuxb202106012

您当前的位置：

首页 >

文章列表页 >

Rectification Characteristics of Tab-Type Elbow Flow Conditioner

更新时间：2025-07-09

- Rectification Characteristics of Tab-Type Elbow Flow Conditioner
- Vol. 55, Issue 6, Pages: 92-101(2021)
- 作者机构：
  
  1. 西安交通大学叶轮机械研究所,西安,710049
  2. 西安交通大学陕西省叶轮机械及动力装备工程实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202106012
  CLC： TK313
- Online First：10 June 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
Rectification Characteristics of Tab-Type Elbow Flow Conditioner[J]. 2021, 55(6): 92-101.
DOI：

Rectification Characteristics of Tab-Type Elbow Flow Conditioner[J]. 2021, 55(6): 92-101. DOI： 10.7652/xjtuxb202106012.

摘要

针对翅片式弯头流动调整器

采用数值方法

研究了3种实际来流条件下的整流特性

分析了其整流机理、整流性能、适用范围和压力损失情况。结果表明:弯头翅片通过压差作用形成了对转的诱导涡

将弯头外侧流体导向弯头内侧

从而大幅增强流体间的动量交换

实现了扰乱原始速度分布并形成均匀流动的效果; 相对于光滑管

翅片式流动调整器的压力均匀度变化不大

速度均匀度提升了21%～36%

流向角均匀度则随进口条件变化; 翅片式流动调整器的流动阻力高于叶片式流动调整器

低于孔板式流动调整器

与管束式流动调整器相当。

Abstract

The rectification characteristics of a tab-type elbow flow conditioner under three incoming flow conditions are investigated by numerical methods

and the flow mechanism

rectification performance

application range and pressure loss characteristics are analyzed. The results show that the elbow tabs form a counter-rotating induced vortex through the influence of pressure difference

and guide the outside fluid to the inside in elbows

thus greatly enhancing the momentum exchange between the fluids

and achieving the effect of disturbing the original velocity distribution and forming a uniform flow. Compared with the smooth tube elbow

the tab-type flow conditioner has little effect on the pressure uniformity

but increases the velocity uniformity by 21%-36%

and the influence on the flow angle uniformity varies with the inlet conditions. The flow resistance of the tab-type flow conditioner is higher than that of the blade-type flow conditioner

lower than that of the orifice-plate flow conditioner

and equivalent to the tube bundle flow conditioner.

关键词

Keywords

references

杨运旅. 基于CFD的流动调整器性能评价方法研究与安装优化 [D]. 广州: 华南理工大学, 2018: 2.

REICHERT J K, AZAD R S. Nonasymptotic behavior of developing turbulent pipe flow [J]. Canadian Journal of Physics, 1976, 54(3): 268-278.

REICHERT J K, AZAD R S. Features of a developing turbulent boundary layer measured in a bounded flow [J]. Canadian Journal of Physics, 1979, 57(3): 477-485.

LARIBI B, ABDELLAH HADJ A. Analysis of turbulent flow development downstream disturbers with perforated plate flow conditioner [J]. Applied Mechanics and Materials, 2012, 197: 73-77.

屈鑫鑫. 带流动调整器圆形截面管道内流场分布特性研究 [D]. 西安: 西安建筑科技大学, 2017: 5-7.

刘桂雄, 陈国宇, 谭文胜. 流量测量流动调整器结构与发展趋势分析 [J]. 中国测试, 2020, 46(3): 12-16.

LIU Guixiong, CHEN Guoyu, TAN Wensheng. Flow measurement flow conditioner structure and development trend analysis [J]. China Measurement Test, 2020, 46(3): 12-16.

GONZALEZ-TREJO J, REAL-RAMIREZ C A, MIRANDA-TELLO R, et al. Numerical and physical parametric analysis of a SEN with flow conditioners in slab continuous casting mold [J]. Archives of Metallurgy and Materials, 2017, 62(2): 927-946.

LAWS E M, OUAZANNE A K. Compact installations for differential flowmeters [J]. Flow Measurement and Instrumentation, 1994, 5(2): 79-85.

XIONG Wei, KALKÜHLER K, MERZKIRCH W. Velocity and turbulence measurements downstream of flow conditioners [J]. Flow Measurement and Instrumentation, 2003, 14(6): 249-260.

李跃忠, 李昌禧. 多声道超声气体流量计的建模与仿真 [J]. 华中科技大学学报(自然科学版), 2006, 34(4): 39-41, 55.

LI Yuezhong, LI Changxi. Modeling and simulating of multi-path ultrasonic gas flowmeters [J]. Journal of Huazhong University of Science and Technology(Nature Science Edition), 2006, 34(4): 39-41, 55.

READER-HARRIS M. Orifice plates and Venturi tubes [M]. Berlin, Germany: Springer-Verlag, 2015: 245-280.

KURNIADI D, TRISNOBUDI A. A multi-path ultrasonic transit time flow meter using a tomography method for gas flow velocity profile measurement [J]. Particle Particle Systems Characterization, 2006, 23(3/4): 330-338.

MAHADEVA D V, BAKER R C, WOODHOUSE J. Studies of the accuracy of clamp-on transit time ultrasonic flowmeters [C]∥2008 IEEE Instrumentation and Measurement Technology Conference. Piscataway, NJ, USA: IEEE, 2008: 969-973.

张巧玲, 曹佳豪, 杨振东, 等. 基于Zanker型流动调整器的平面双弯头流场特性研究 [J]. 西安理工大学学报, 2018, 34(3): 326-331.

ZHANG Qiaoling, CAO Jiahao, YANG Zhendong, et al. Study of flow field characteristics of plane double elbow based on Zanker perforated flow regulator [J]. Journal of Xi'an University of Technology, 2018, 34(3): 326-331.

SMITH C R, PA B. Compiler: US4929088 [P]. 1990-05-29.

SMITH C R, PA B. Compiler: US4981368 [P]. 1991-01-01.

PARK J, VAZQUEZ A P, ALVARADO J L, et al. Characterization of tab-induced counter-rotating vortex pair for mixing applications [J]. Journal of Fluids Engineering, 2017, 139(3): 031102.

ROBINSON S K. Coherent motions in the turbulent boundary layer [J]. Annual Review of Fluid Mechanics, 1991, 23(1): 601-639.

YANG W, MENG H, SHENG J. Dynamics of hairpin vortices generated by a mixing tab in a channel flow [J]. Experiments in Fluids, 2001, 30(6): 705-722.

GRETTA W J, SMITH C R. The flow structure and statistics of a passive mixing tab [J]. Journal of Fluids Engineering, 1993, 115(2): 255-263.

ELAVARASAN R, MENG Hui. Flow visualization study of role of coherent structures in a tab wake [J]. Fluid Dynamics Research, 2000, 27(3): 183-197.

LIN J C. Review of research on low-profile vortex generators to control boundary-layer separation [J]. Progress in Aerospace Sciences, 2002, 38(4/5): 389-420.

王瑞欣, 郭亚军, 屈鑫鑫, 等. 基于PIV技术流动调整器性能试验研究 [J]. 推进技术, 2019, 40(12): 2708-2714.

WANG Ruixin, GUO Yajun, QU Xinxin, et al. Experimental study on performance of flow conditioners based on PIV measurements technology [J]. Journal of Propulsion Technology, 2019, 40(12): 2708-2714.

李坦, 靳世平, 黄素逸, 等. 流场速度分布均匀性评价指标比较与应用研究 [J]. 热力发电, 2013, 42(11): 60-63, 92.

LI Tan, JIN Shiping, HUANG Suyi, et al. Evaluation indices of flow velocity distribution uniformity: comparison and application [J]. Thermal Power Generation, 2013, 42(11): 60-63, 92.

ABBOTT M B. Computational fluid dynamics: an introduction for engineers [M]. London, UK: Longman Pub Group, 1997.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Optimization Design and Pressure Losses of Steam Admission in Industrial Steam Turbines Depending on Geometrical Parameters

Flow Field Analysis for a New Type of Steam Pulsed Acoustic Dust Cleaning Device

Influence of Residual Fuel Ice in Micro Gas Filling Tube on the Temperature Control of ICF Cryogenic Target

Evaluation of Flow Stability and Uniformity in Double Elbow Pipe with Circular Cross Section

Sensitivity Analysis of Foil Geometrical Parameters for the Third-Generation CO2 Gas Foil Bearings Based on Design of Experiments Method

Related Author

王仲奇

周逊

姚宏

洪振瀚 1

王红娟 1

卓敏鹏 2

屠珊 1

鲁敬妮 1

Related Institution

School of Energy Science and Engineering, Harbin Institute of Technology

School of Energy and Power Engineering, Xi'an Jiaotong University

⁰