高焓可压缩流动热辐射颗粒两相流理论分析

doi:10.13209/j.0479-8023.2022.039

北京大学学报自然科学版 ›› 2022, Vol. 58 ›› Issue (6): 989-998.DOI: 10.13209/j.0479-8023.2022.039

高焓可压缩流动热辐射颗粒两相流理论分析

李婷婷^1,2, 刘朋欣², 袁先旭², 周强¹, 李青^2,†

1. 西安交通大学化学工程与技术学院, 西安 710049 2. 空气动力学国家重点实验室, 中国空气动力研究与发展中心, 绵阳 621000

收稿日期:2022-01-05 修回日期:2022-04-15 出版日期:2022-11-20 发布日期:2022-11-20
通讯作者: 李青, E-mail: 1201214314(at)pku.edu.cn
基金资助:
国家重点研发计划(2019YFA0405200)资助

Theoretical Analysis on the High Enthalpy Radiation Particle Laden Compressible Flow

LI Tingting^1,2, LIU Pengxin², YUAN Xianxu², ZHOU Qiang¹, LI Qing^2,†

1. School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049 2. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000

Received:2022-01-05 Revised:2022-04-15 Online:2022-11-20 Published:2022-11-20
Contact: LI Qing, E-mail: 1201214314(at)pku.edu.cn

摘要/Abstract

摘要：

从理论上推导了弥散热辐射颗粒与可压缩流动的耦合方程, 发现弥散颗粒与携带流体的相间传热系数与马赫数平方成正比。极端高温下, 弥散颗粒相与携带流体相的对流传热是单向的, 即等温颗粒不断通过对流作用传热给流体, 但对流作用无法冷却高温热辐射颗粒。通过考察均匀流中缩核效应对惯性颗粒动力学的影响, 发现质量损失会诱导颗粒惯性参数发生变化, 从而改变颗粒的非定常速度曲线。

关键词: 热辐射颗粒, 辐射热响应系数, 对流热响应系数, 颗粒缩核效应

Abstract:

The theoretical equations of particle laden compressible flow by taking into account of heat radiation and convection were derived. It is found that, the heat exchange between dispersed phase and carried fluid phase is proportional to square of Mach number. In extreme high temperature environment, the convective heat transfer between two phases is one way, which means that the isothermal particle transfers the heat into the fluid, but the fluid can not cool down the radiation-heated particle via convection. In addition, the effect of shrinking core on the particle dynamics was investigated. The shrinking core effect modifies the Stokes number of particle, therefore the time evolution of unsteady velocity of particle from rest to terminal state in a uniform flow was altered.

Key words: radiation heated particle, thermal radiation response coefficient, thermal convection response coefficient, effect of shrinking core

李婷婷, 刘朋欣, 袁先旭, 周强, 李青. 高焓可压缩流动热辐射颗粒两相流理论分析[J]. 北京大学学报自然科学版, 2022, 58(6): 989-998.

LI Tingting, LIU Pengxin, YUAN Xianxu, ZHOU Qiang, LI Qing. Theoretical Analysis on the High Enthalpy Radiation Particle Laden Compressible Flow[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022, 58(6): 989-998.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://xbna.pku.edu.cn/CN/10.13209/j.0479-8023.2022.039

https://xbna.pku.edu.cn/CN/Y2022/V58/I6/989

高焓可压缩流动热辐射颗粒两相流理论分析

Theoretical Analysis on the High Enthalpy Radiation Particle Laden Compressible Flow

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

留言