Numerical simulation of asymmetric flow in Venturi tube

JIANG Yanhua; YANG Mo; GUO Chunsun; SHEN Siwei

doi:10.3969/j.issn.0438-1157.2014.z1.036

您当前的位置：

首页 >

文章列表页 >

Numerical simulation of asymmetric flow in Venturi tube

更新时间：2025-12-10

- Numerical simulation of asymmetric flow in Venturi tube
- CIESC Journal Issue S1, Pages: 223-228(2014)
- 作者机构：
  
  上海理工大学能源与动力工程学院,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.z1.036
  CLC： K124
- Online First：30 May 2014，
  
  Published：30 May 2014
- 稿件说明：
移动端阅览
JIANG Yanhua, YANG Mo, GUO Chunsun, et al. Numerical simulation of asymmetric flow in Venturi tube[J]. CIESC Journal, 2014, (S1): 223-228.
DOI：

JIANG Yanhua, YANG Mo, GUO Chunsun, et al. Numerical simulation of asymmetric flow in Venturi tube[J]. CIESC Journal, 2014, (S1): 223-228. DOI： 10.3969/j.issn.0438-1157.2014.z1.036.

摘要

针对文丘里管这类具有完全对称结构的缩扩管道，分别对二维通道和三维管内流动建立了不可压缩非稳态数学模型，采用数值模拟的方法，研究了流动分岔现象，重点探讨了在这种对称结构下出现的非对称流动。数值模拟结果表明，当Reynolds数超过某临界值，对称结构的文丘里管内流场都出现了非对称现象，在扩展角部产生不规则的回流区。其流动主要受Reynolds数和管道几何形状的影响，并具体说明了流动不对称特性随这两者的变化规律。

Abstract

In order to study the flow in the completely symmetric structure of the converging-diverging tube such as Venturi

the incompressible unsteady flow numerical models are established respectively for two dimensional channels and three dimensional tubes

and the numerical simulation method is adopted in the study. This paper confirms the flow bifurcation phenomenon

and mainly discusses the asymmetric flow in the symmetric structure. The simulation results show that

when Reynolds number reaches a critical value

the flow field in the symmetric Venturi tube will appear the asymmetric phenomenon

and produce irregular recirculation zones in the extended corner. In addition

the study indicates that the flow characteristics in the symmetric converging-diverging tube are affected by Reynolds number and geometry shape of tube

and the variation rules which flow asymmetric characteristics change with Reynolds number and geometry shape are obtained.

关键词

Keywords

references

Views

269

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on influence of jet flow on slurry transport characteristics in slurry chamber of shield tunneling machines

Impact of turbulence model in coupled simulation of ethylene cracking furnace

Numerical simulation of cold state liquid flow in scrubbing-cooling ring

Research on two-phase flow and heat transfer characteristics in precooling process of low-temperature pipelines based on one-dimensional drift-flux model

Study on flow and heat transfer mechanism of supercritical CO2 in inclined upward tube under cooling conditions

Related Author

SUN Jiuchun

SANG Yunlong

WANG Haitao

JIA Hao

ZHU Yan

Chengzhen NI

Wenli DU

Guihua HU

Related Institution

Shanghai Tengchuang Shuzhi Engineering Technology Consulting Co., Ltd.

Tengda Construction Co., Ltd.

Zhejiang Key Laboratory of Multiflow and Fluid Machinery, Zhejiang Sci-Tech University

Yancheng Highway Development Center

School of Information Science and Engineering, East China University of Science and Technology

⁰