四川兵工学报
四川兵工學報
사천병공학보
SICHUAN ORDNANCE JOURNAL
2014年
8期
22-24,31
,共4页
预混燃烧%涡耗散燃烧模型%CFD%燃烧轻气炮
預混燃燒%渦耗散燃燒模型%CFD%燃燒輕氣砲
예혼연소%와모산연소모형%CFD%연소경기포
premixed combustion%EDM%CFD%combustion light gas gun
针对燃烧轻气炮密闭空间轻质可燃气体燃烧控制问题，建立了燃烧室氢氧预混气体湍流反应流动模型，湍流模型采用标准k-ε双方程模型，氢氧燃烧采用EDM涡耗散模型。通过CFD方法对氢氧燃烧过程进行了数值模拟，获得了燃烧室内压力、温度及气体组分的时空分布变化过程，分析了不同装填条件对氢氧燃烧过程的影响规律。研究结果对燃烧轻气炮氢氧预混气体燃烧过程控制具有指导意义。
針對燃燒輕氣砲密閉空間輕質可燃氣體燃燒控製問題，建立瞭燃燒室氫氧預混氣體湍流反應流動模型，湍流模型採用標準k-ε雙方程模型，氫氧燃燒採用EDM渦耗散模型。通過CFD方法對氫氧燃燒過程進行瞭數值模擬，穫得瞭燃燒室內壓力、溫度及氣體組分的時空分佈變化過程，分析瞭不同裝填條件對氫氧燃燒過程的影響規律。研究結果對燃燒輕氣砲氫氧預混氣體燃燒過程控製具有指導意義。
침대연소경기포밀폐공간경질가연기체연소공제문제，건립료연소실경양예혼기체단류반응류동모형，단류모형채용표준k-ε쌍방정모형，경양연소채용EDM와모산모형。통과CFD방법대경양연소과정진행료수치모의，획득료연소실내압력、온도급기체조분적시공분포변화과정，분석료불동장전조건대경양연소과정적영향규률。연구결과대연소경기포경양예혼기체연소과정공제구유지도의의。
Aiming at the combustion control problem of light combustible gas in the closed chamber of combustion light gas gun,the turbulent reaction flow model of hydrogen-oxygen premixed gas was estab-lished,in which the standard k-εtwo-equation turbulence model and the EDM combustion model was used.The combustion process of hydrogen-oxygen was simulated by computational fluid dynamics(CFD) method,the spatial distribution of pressure,temperature and gas component versus time was gained,and the influence of different loading condition on hydrogen-oxygen combustion process was analyzed.The sim-ulated results can provide an important reference for controlling the combustion process of hydrogen-oxygen premixed gas in the combustion light gas gun.
