航空兵器
航空兵器
항공병기
HANGKONG BINGQI
2014年
6期
45-49,54
,共6页
魏树壮%刘卫华%潘俊%王小平%冯诗愚
魏樹壯%劉衛華%潘俊%王小平%馮詩愚
위수장%류위화%반준%왕소평%풍시우
油箱惰化%富氮气体( NEA)%流量%计算方法%影响因素
油箱惰化%富氮氣體( NEA)%流量%計算方法%影響因素
유상타화%부담기체( NEA)%류량%계산방법%영향인소
fuel tank inerting%nitrogen-enriched air ( NEA)%flow rate%calculation method%influ-ence factor
根据燃油箱气相空间中各气体组分混合特性,采用数值积分方法,在综合考虑油箱载油率、环境温度、燃油中气体溶解度、燃油蒸汽及富氮气体浓度等因素的条件下,建立油箱惰化数学模型,并通过相关文献中的实验数据验证了该模型的正确性。在此基础上,分别对飞机滑行-爬升和俯冲-下降阶段的惰化流量需求开展研究,并分析了载油率、富氮气体浓度、温度等因素对惰化流量需求的影响。本文的研究成果可为飞机油箱惰化系统设计提供理论支持。
根據燃油箱氣相空間中各氣體組分混閤特性,採用數值積分方法,在綜閤攷慮油箱載油率、環境溫度、燃油中氣體溶解度、燃油蒸汽及富氮氣體濃度等因素的條件下,建立油箱惰化數學模型,併通過相關文獻中的實驗數據驗證瞭該模型的正確性。在此基礎上,分彆對飛機滑行-爬升和俯遲-下降階段的惰化流量需求開展研究,併分析瞭載油率、富氮氣體濃度、溫度等因素對惰化流量需求的影響。本文的研究成果可為飛機油箱惰化繫統設計提供理論支持。
근거연유상기상공간중각기체조분혼합특성,채용수치적분방법,재종합고필유상재유솔、배경온도、연유중기체용해도、연유증기급부담기체농도등인소적조건하,건립유상타화수학모형,병통과상관문헌중적실험수거험증료해모형적정학성。재차기출상,분별대비궤활행-파승화부충-하강계단적타화류량수구개전연구,병분석료재유솔、부담기체농도、온도등인소대타화류량수구적영향。본문적연구성과가위비궤유상타화계통설계제공이론지지。
According to the characteristics of gas-component mixing in fuel tank vapor space, and considering the influences of several factors such as fuel loading rate, environment temperature, gas solu-bility in fuel, fuel vapor and nitrogen-enriched gas concentration, a mathematical model of fuel tank iner-ting is established by using the numerical integration method.The correctness of the model is verified by the experimental data published in related literatures.On this basis, This paper researches on inerting flow requirements for aircraft taxiing -climb and subducting-descent stages, and analyzes the impact of fuel loading rate, nitrogen-enriched gas concentration, temperature and other factors on the inerting flow re-quirements.The study can provide theoretical support for design of the aircraft fuel tank inerting system.