Mathematical Modelling of Density Fluctuation and Its Application in Combustion

Zheng Chuguang; Yu Dajiang and Mi Jianchun(Huazhong University of Science and Technology; Wuhan)

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Mathematical Modelling of Density Fluctuation and Its Application in Combustion

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- Mathematical Modelling of Density Fluctuation and Its Application in Combustion
- CIESC Journal Issue 1, (1990)
- 作者机构：
  
  华中理工大学,华中理工大学,华中理工大学 ,武汉,武汉,武汉
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 February 1990，
  
  Published：25 February 1990
- 稿件说明：
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Zheng Chuguang, Yu Dajiang and Mi Jianchun(Huazhong University of Science and Technology, Wuhan). Mathematical Modelling of Density Fluctuation and Its Application in Combustion[J]. CIESC Journal, 1990, (1).
DOI：

Zheng Chuguang, Yu Dajiang and Mi Jianchun(Huazhong University of Science and Technology, Wuhan). Mathematical Modelling of Density Fluctuation and Its Application in Combustion[J]. CIESC Journal, 1990, (1). DOI：

摘要

针对湍流燃烧进行的模拟研究

本文较深入地探讨了湍流脉动与燃烧过程之间的相互作用关系

对密度-标量之间的脉动关联关系(?)提出了数学模化的表述形式

引入了以密度-速度脉动关联量为独立变量的两个输运方程与k-ε双方程模型一起作为对燃烧过程的湍流脉动待性的描述

并分别对气体均相燃烧和煤粉气流多相燃烧的全场作了数值求解.

Abstract

The density fluctuation correlation terms are introduced into modelling of a turbulent flame. A mathematical simulation of the density-scalar parameters fluctuation correlation terms (ρφ) is given in the calculation of combustion. The two transport equations for the density-velocity fluctuation correlation terms (pu and pv) are derived to solve the turbulence characteristics of a homogeneous gas flame and a heterogeneous pulverized coal flame. A further study has been made of the mutually interacting turbulent fluctuation and combustion process.

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