Research on permeability and flow resistance characteristic of sintered porous structure

SUN Ji-Guo; WANG Jian-hua

Chinese

您当前的位置：

首页 >

文章列表页 >

Research on permeability and flow resistance characteristic of sintered porous structure

更新时间：2026-07-07

- Research on permeability and flow resistance characteristic of sintered porous structure
- Vol. 23, Issue 1, (2008)
- 作者机构：
  
  1. 北京航天动力研究所,北京,100076
  2. 中国科技大学工程学院,合肥,230026
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
移动端阅览
SUN Ji-Guo, WANG Jian-hua. Research on permeability and flow resistance characteristic of sintered porous structure[J]. 2008, 23(1).
DOI：

SUN Ji-Guo, WANG Jian-hua. Research on permeability and flow resistance characteristic of sintered porous structure[J]. 2008, 23(1). DOI：

摘要

为研究粉末冶金多孔结构的渗透性和流阻

以空气和氢气为介质进行了实验.实验显示微孔内流雷诺数低于1时

介质流量与穿过多孔结构的压降呈线性关系;当内流雷诺数高于1时

其流量与压降呈非线性特征.分析表明:传统的堆积床经验关系式将低估氢气和空气在烧结材料微孔中的流阻;相反

高估烧结多孔结构的渗透性能.并用粉末烧结结构的氢气和空气渗透实验数据拟合了多孔结构渗透率及摩擦阻力关联式.

Abstract

To study the permeability and flow resistance of sintered porous stainless steel

a test was conducted for compressed air and gaseous hydrogen as the medium.The experimental results indicate that

there is a linear relationship between the pressure loss through the porous structure and the medium flow rate

when the flow Reynolds number in the pores is less than 1;or there is a non-linear characteristics when Reynolds number is larger than 1.This shows that:the flow friction of gaseous hydrogen or air within the pores is underestimated using the traditional correlations based on the experiments of packed beds;but the permeability of the sintered porous structure is overestimated by the Ergun's corrective correlation.The relationship between the friction resistance and permeability of hydrogen or air flowing through the porous structure was simulated with the aid of the experimental data.

关键词

Keywords

references

Views

501

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Cooling performance induced by film holes with coverage of porous media layer

Preliminary study of wall temperature characteristic of a platelet transpiration cooled thrust chamber

Investigation on Analytical Solution of One-Dimensional,Steady,Non-Equilibrium Transpiration Cooling

Influence of Variable Thermophysical Properties and Thermal Radiation on Convection Heat Transfer in Transpiration Cooling

Experiment of rod⁃airfoil interaction noise reduction using porous leading edges

Related Author

LIU Yuan-qing

JIANG Pei-xue

Wang Yang-ping

LIN Yang

SUN Bing

ZHENG Li-ming

WANG Hai-nan

WANG Jian-hua

Related Institution

Key laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University

School of Astronautics, Beijing University of Aeronautics and Astronautics

Department of Thermal Science and Energy Engineering, University of Science and Technology of China

Tsinghua University

Key Laboratory of Aerodynamic Noise Control，China Aerodynamics Research and Development Center

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