中国空间科学技术2023，Vol.43Issue(6)：51-57,7.DOI:10.16708/j.cnki.1000-758X.2023.0083
小尺度弱强度湍流燃烧地面匹配实验研究
Study on ground matching experiments for small-scale weak intensity turbulent combustion
摘要
Abstract
The study of small-scale,weak-intensity turbulent combustion is one of the experimental projects conducted in the combustion science rack during the construction of China's space station.Ground matching experiments were carried out to verify the compatibility of the combustion interface in space station turbulent combustion experiments and to determine the experimental conditions.The constraints of the space combustion science rack were outlined and a burner was designed specifically for studying the small-scale,weak-intensity turbulent combustion in the space station combustion science rack.A ground experimental system was established,and PIV was used to measure the turbulence of the combustion flow field.The experimental results indicate that as the mesh grid increases,the maximum turbulence intensity at the outlet decreases.The inflow velocity of the premixed gas has only a weak influence on the relative turbulence intensity in the flame,indicating that this type of turbulence in the flame is caused by small-scale vortices.Different equivalence ratio experimental results show that the turbulence intensity inside the flame is significantly higher than that in the inflow premixed gas and the combustion product region.Matching experiments were conducted using the designed burner in the combustion experiment cabinet,demonstrating the successful compatibility and ignition of the designed burner.关键词
射流/湍流/燃烧/空间研究/地面匹配实验Key words
jets/turbulent flow/combustion/space research/ground matching experiments分类
航空航天引用本文复制引用
孔文俊,赵若霖,袁志伟..小尺度弱强度湍流燃烧地面匹配实验研究[J].中国空间科学技术,2023,43(6):51-57,7.基金项目
中国载人航天工程空间应用系统项目 （）
