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A decomposition method for the simultaneous reconstruction of temperature and soot volume fraction distributions in axisymmetric flames
Measurement Science and Technology ( IF 2.4 ) Pub Date : 2020-09-09 , DOI: 10.1088/1361-6501/ab9dbf
Huawei Liu 1 , Huaichun Zhou 2 , Chao Xu 1
Affiliation  

This paper presents a method for the simultaneous reconstruction of temperature and soot volume fraction distributions in axisymmetric flames. In the proposed method, the radiation temperature and emissivity are determined using a multi-wavelength method. Then, based on the decomposition of the emissivity, the soot volume fraction distribution is reconstructed. Accordingly, the temperature distribution is calculated using the reconstructed local radiation source terms under a single wavelength. Based on a correction formula proposed in this paper, a further correction process is conducted, and the soot volume fraction and temperature distributions are successively obtained. Simulations are conducted with the temperature and soot volume fraction distributions at two different heights from the flame burner of an axisymmetric ethylene laminar diffusion flame. In the simulations, normal random errors are superimposed, and the radiation temperature and emissivity are calculated based...

中文翻译:

同时重构轴对称火焰中温度和烟so体积分数分布的分解方法

本文提出了一种同时重建轴对称火焰中温度和烟尘体积分数分布的方法。在提出的方法中,使用多波长方法确定辐射温度和发射率。然后,基于发射率的分解,重建烟灰体积分数分布。因此,在单个波长下使用重构的局部辐射源项计算温度分布。根据本文提出的校正公式,进行了进一步的校正过程,并依次获得了烟尘的体积分数和温度分布。在距轴对称乙烯层流扩散火焰的火焰燃烧器两个不同高度处的温度和烟so体积分数分布进行模拟。在仿真中,叠加了正常的随机误差,并根据...计算了辐射温度和发射率。
更新日期:2020-09-10
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