超高压环境下再生式喷雾燃烧过程的多维多相流数值模拟  

MULTIPHASE MULTIDIMENSIONAL NUMERICAL SIMULATION OF REGENERATVE SPRAY COMBUSTION PROCESS IN A SUPERHIGH PRESSURE ENVIRONMENT

作　　者：朱广圣[1] 张月林[1] 林钧毅[1] 

机构地区：[1]南京理工大学

出　　处：《爆炸与冲击》1996年第4期305-311,共7页Explosion and Shock Waves

摘　　要：液体药火炮内再生式喷雾燃烧过程的主要特点，一是处于超高压下，二是燃烧过程与决定液体喷射过程的移动边界高度耦合。建立了充分反映上述特点的多维多相流数学模型，对液滴相还考虑了液滴之间的碰撞与聚合以及液滴与湍流之间的相互作用。运用任意拉格朗日－欧拉数值方法进行了数值求解，得出了与实验基本一致的结果。给出并分析了过程各主要物理参量的时空分布，揭示了再生式喷雾燃烧过程的基本特征。The character of regenerative sprary combustion in RLPG differs from common spray combustion in two aspects,one is the process happening under superhigh pressure,anther is the process being cupled closely with two movable boundaries that control the regenerative injection. This paper presents a multiphase multidimensional mathematical model that takes these characters into consideration in detail,the effects of interaction between droplets as well as interaction between droplets and turbulence are also included in the model. The numerical results are obtained by using the ALE numerical method and found to be in agreement with the experimental data. By analysing the resulted time-space distributions of main physical parameters,the characteristics of regenerative spray combustion are derived.

关 键 词：再生式 喷雾燃烧 多相流 数值模拟 液体药 火炮 

分 类 号：TQ038.3[化学工程] TJ301[兵器科学与技术—火炮、自动武器与弹药工程]