Analysis of scattering characteristics of ablation particles

Abstract

The study of hypersonic aircraft and their tail flames is an important area of research in the field of aerodynamics. The tail flame of such aircraft is an important characteristic, as it affects the aerodynamic stability of the aircraft and has implications for the safety and efficiency of flight. In order to accurately simulate the tail flame and calculate its spectral radiation characteristics, it is necessary to analyze the scattering characteristics of the ablative particles in detail. This involves studying the changes in optical properties that occur as a result of variations in the proportion of mixed ablation products, specifically B2O3 and SiO2, during the early stages of the reaction. The paper under consideration focuses on the analysis of this process, with particular attention given to the properties of the new modified material ZrB2-SiC. The researchers used MIE scattering theory combined with independent scattering approximation to compare and analyze the process. Their findings indicate that the extinction coefficient decreases with the increase of ablation time during this early transition stage, while the difference in scattering image function is not significant. Therefore, it is suggested that the difference of scattering phase function can be ignored in future studies. The phase function of SiO2 particles is directly taken as the final result. This study is of great significance for the development of more accurate simulation models of flame in the tail of hypersonic aircraft, as it emphasizes the need for a detailed understanding of the scattering properties of ablative particles. By analyzing the optical properties of these particles, we can better understand the situation of tail flame and predict its spectral radiation characteristics more accurately. This information can be used to improve the safety and efficiency of hypersonic aircraft and may have wider applications in the field of aerodynamics.