Large-eddy simulation of particle dispersion and velocity similarity in a two-phase round turbulent jet

WANG Bing; ZHANG Hui-qiang; WANG Xi-lin

Chinese

您当前的位置：

首页 >

文章列表页 >

Large-eddy simulation of particle dispersion and velocity similarity in a two-phase round turbulent jet

更新时间：2026-07-07

- Large-eddy simulation of particle dispersion and velocity similarity in a two-phase round turbulent jet
- Vol. 24, Issue 7, (2009)
- 作者机构：
  
  清华大学航天航空学院北京市3E能源重点实验室,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
移动端阅览
WANG Bing, ZHANG Hui-qiang, WANG Xi-lin. Large-eddy simulation of particle dispersion and velocity similarity in a two-phase round turbulent jet[J]. 2009, 24(7).
DOI：

WANG Bing, ZHANG Hui-qiang, WANG Xi-lin. Large-eddy simulation of particle dispersion and velocity similarity in a two-phase round turbulent jet[J]. 2009, 24(7). DOI：

摘要

气相采用大涡模拟方法、颗粒相采用拉格朗日轨道模型

对高雷诺数两相圆湍射流进行了数值模拟

研究了一种中等Stokes颗粒在大尺度涡结构中弥散特点以及两相速度统计特征.研究表明

颗粒弥散同时受流动涡结构和颗粒惯性决定

颗粒在涡结构的边缘或者涡与涡交织区域颗粒数密度高

形成倾向性分布.沿中心轴线两相平均速度衰减不同

颗粒相速度衰减慢于气相.射流近场两相速度沿径向变化显著

在射流远场两相平均速度都具有相似性

沿径向颗粒相平均速度衰减慢、分布平稳.

Abstract

A high-Reynolds two-phase round turbulent jet was numerically simulated by means of large eddy simulation for gas-phase and particle trajectory model for particle-phase.The dispersion behavior of particles with median Stokes number in large scale structures was studied.Two-phase statistical velocities were compared with each other.It's shown that particle dispersion is dominated both by large eddy structures and particle inertia

resulting in a high particle concentration distribution in the edge of vortex structures or interlaced regions of vortexes(called as particle preferential distribution).The decaying rate of two-phase velocity in the axial direction is different

and the particle-phase velocity decays slower than that of gas-phase.In the near field

two-phase velocities differ from each other significantly.In the far field

two-phase mean velocities are similar

and particle velocity decays radially slower.

关键词

Keywords

references

Views

419

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influences of geometry of hull tail on aerodynamic drag of stratospheric airships

Large-eddy simulation of separated boundary layer transition in low-pressure turbine cascade with and without wakes

Study of sub-grid pollutant formation model in combustor

Experimental Studies of Flow and Combustion with a Flame-Holder and LES of the Flow

Parallel Computation for Large-Eddy Simulation of a Model Afterburner

Related Author

DAI Ren

YANG Fan

GUO Xue-yan

ZHANG Hai-jun

ZOU Zheng-ping

YE Jian

LIU Zhi-gang

YAN Ying-wen

Related Institution

School of Energy and Power Engineering, University of Shanghai for Science and Technology

School of Power and Energy,Northwestern Polytechnical University

College of Power Engineering, Chongqing University

School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰