南京航空航天大学学报2024，Vol.56Issue(4)：650-657,8.DOI:10.16356/j.1005-2615.2024.04.007
硝酸乙基铵推进剂燃烧骨架机理的构建和验证
Construction and Validation of Skeletal Combustion Mechanism for Ethylammonium Nitrate Propellant
摘要
Abstract
In order to obtain a mechanism which is suitable for numerical simulation of combustion process in EAN thruster,a detailed combustion mechanism for EAN is presented based on the existing mechanism containing EAN evaporation products nitric acid and ethylamine,and a skeletal mechanism for EAN combustion consisting 82 species and 291 reactions is obtained by simplifying the detailed mechanism through an integrated reduction method that contains rate of production(ROP)analysis and sensitivity analysis.The ignition delay time,species profiles in premixed laminar flames and shock tubes for ethylamine reaction and species profiles in shock tubes for nitric acid reaction are simulated by using detailed mechanism and skeletal mechanism.Validations for two mechanisms are presented by comparing their simulation results and experimental datas.The validations show that simulation results of skeletal mechanism are in agreement with experimental datas and predictions of detailed mechanism,which proves that the skeletal mechanism is credible.The obtained skeletal mechanism provides a reaction mechanism model for numerical simulation of combustion process in EAN thruster.关键词
硝酸乙基铵/燃烧机理/骨架机理/生产速率分析/敏感性分析Key words
ethylammonium nitrate(EAN)/combustion mechanism/skeletal mechanism/rate of production(ROP)analysis/sensitivity analysis分类
化学化工引用本文复制引用
邓梓健,彭惠生,杨天杭..硝酸乙基铵推进剂燃烧骨架机理的构建和验证[J].南京航空航天大学学报,2024,56(4):650-657,8.基金项目
国家重点研发计划(2020YFC2201101) （2020YFC2201101）
广东省自然科学基金(2022A1515010149). （2022A1515010149）
