Application of the Elliptic-Type Conditional Moment Closure Method to Turbulent Diffusion Bluff-Body Flames

LIU Tao; ZHANG Kan; MENG Kun; FANG Ren

Chinese

您当前的位置：

首页 >

文章列表页 >

Application of the Elliptic-Type Conditional Moment Closure Method to Turbulent Diffusion Bluff-Body Flames

更新时间：2026-07-07

- Application of the Elliptic-Type Conditional Moment Closure Method to Turbulent Diffusion Bluff-Body Flames
- Vol. 18, Issue 6, (2003)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2003
- 稿件说明：
移动端阅览
LIU Tao, ZHANG Kan, MENG Kun, et al. Application of the Elliptic-Type Conditional Moment Closure Method to Turbulent Diffusion Bluff-Body Flames[J]. 2003, 18(6).
DOI：

LIU Tao, ZHANG Kan, MENG Kun, et al. Application of the Elliptic-Type Conditional Moment Closure Method to Turbulent Diffusion Bluff-Body Flames[J]. 2003, 18(6). DOI：

摘要

使用考虑分子扩散与湍流扩散的椭圆型CMC模型对钝体绕流扩散火焰进行了数值模拟计算

计算的工况包括CH4/H2、CO/H2和CH3OH等燃料在空气中的燃烧。在数值计算中使用了k-ε双方程湍流模型和SIMPLE算法

并将计算结果与实验数据进行了对比

讨论了计算结果与实验数据之间偏差产生的原因

还分析了条件平均变量的空间变化。结果表明

条件平均温度、OH、CO和NO等组分的质量分数的计算结果与实验数据有着很好的一致性

说明椭圆型CMC模型是一种能有效地预测湍流非预混火焰中组分浓度和温度的计算方法。

Abstract

The elliptic-type conditional moment closure model is implemented to simulate nonpremixed turbulent bluff-body burner flames.The fuels are CH4/H2

CO/H2 and CH3OH.The k-ε turbulent model and SIMPLE method are employed in the computation.Results of average flow characteristics

conditional averaged temperature

CO and NO concentrations are obtained.Reasonable agreement between experiments and predictions shows that the CMC model is capable of predicting the species concentration and temperature in turbulent nonpremixed combustion.Discrepancy on the rich side may partly be due to the singly conditional moment closure

or lack of adequate chemical kinetics on the rich side.

关键词

Keywords

references

Views

551

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Computation of effect of different nozzle parameters on internal performance of convergent-divergent axisymmetric nozzle

Numerical study and verification on combustion characteristics of afterburner with chevron mixer

Effects of gap between nozzles on plug heat transfer characteristics

Analysis of overall aerodynamic performance of axial-flow compressor with attenuated blade tip

Plenum chamber casing treatment——numerical research of internal flow and mechanism of stall margin improvements

Related Author

SHAO Wan-ren

DI Hu-wei

SHAN Yong

GAO Jia-chun

ZHANG Jing-zhou

LIU Tao

HAN Fei

LIU Yu

Related Institution

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China

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

School of Astronautics, Beijing University of Aeronautics and Astronautics

Institute of Engineering Thermophysics, Chinese Academy of Sciences

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