Influence of Soot Aggregate Morphology on Radiative Properties in Concentration Detection

被引：1

作者：

Yin, Jinying ^{[1
]}

Yang, Hongyan ^{[1
]}

Zhang, Siqi ^{[1
]}

Qin, Yong ^{[1
]}

Zhou, Zhen ^{[1
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Measurement & Commun Engn, Harbin, Peoples R China

来源：

2014 FOURTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC) | 2014年

关键词：

soot aggregates; radiative property; CCA model; T matrix; LIGHT-SCATTERING; T-MATRIX; ABSORPTION;

D O I：

10.1109/IMCCC.2014.158

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Solar radiation is strongly absorbed by soot aggregate. And the atmospheric radiative properties will be affected by the change of aggregate morphology. Based on fractal theory, the morphological properties of soot aggregates are studied using the cluster-cluster aggregation (CCA) model. The superposition T matrix method is employed to perform extensive computations of extinction, absorption and scattering properties of soot aggregates with varying state of compactness and size. The relationship between the morphology and radiative properties of aggregates is discussed. Firstly, the radiative properties of different size and different morphology of aggregates are analyzed with the change of the volume fraction. Then, the absorption, scattering and extinction cross-sections of a fixed morphology aggregate are analyzed with changing particle size. Finally, an essential data for detecting soot aerosol concentration can be provided by the value of absorption cross-section of our results.

引用

页码：745 / 750

页数：6

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