航空发动机燃烧室辐射传热特性研究

Pengyu Shi, Ming Li, Qianqian Yu, Zhisheng Wang, Lishi Ren, Wei Fan

科研成果: 期刊稿件文章同行评审

摘要

The

non-ash-body characteristics. In this paper, based on the OpenFOAM platform, a numerical study on multi-field coupled turbulence-combustion-radiation radiative heat transfer was carried out for a certain type of aero-engine combustion chamber using the mean weighted sum of grey gas (WSGG) gas radiation model, which can accurately describe the non-ash characteristics of the gas. The results show that the radiation heat transfer characteristics are influenced by several factors such as equivalent ratio, combustion pressure and wall emissivity, among which the equivalent ratio is dominant. Increasing the equivalence ratio from 0.11 to 0.4 resulted in a 189% increase in average incident radiation at the combustion chamber wall and a 233% increase in average incident radiation at the exit. Increasing the equivalent ratio, combustion pressure or wall emissivity will increase the average radiation intensity in the combustion chamber and the inhomogeneity of radiation distribution at the exit of the combustion chamber. The radial radiation distribution factor (RRDF) also increases with the increase of equivalent ratio, combustion pressure and wall emissivity.

投稿的翻译标题Study on radiation heat transfer characteristics of aeroengine combustion chamber
源语言繁体中文
页(从-至)697-706
页数10
期刊Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
42
4
DOI
出版状态已出版 - 8月 2024

关键词

  • aero-engine
  • OpenFOAM
  • radiation
  • weighted sum of grey gas

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