Application of Two-dimensional Viscous CE/SE Method in Calculation of Two-phase Detonation  

作　　者：马丹花 翁春生 

机构地区：[1]National Key Lab of Transient Physics, Nanjing University of Science and Technology

出　　处：《Defence Technology（防务技术）》2010年第1期5-9,共5页Defence Technology

基　　金：Sponsored by the National Natural Science Foundation of China (10672080)

摘　　要：The method of two-dimensional viscous space-time conservation element and solution element (CE/SE) can be used to calculate the gas-liquid two-phase interior flow field in pulse detonation engine (PDE). In this paper, the evolution of the detonation wave and the distribution of its physical parameters were analyzed. The numerical results show that the change of axial velocity of gas is the same as that of detonation pressure. The larger the liquid droplet radius is, the longer the time to get stable detonation wave is. The calculated results coincide with the experimented results better.The method of two-dimensional viscous space-time conservation element and solution element （CE/SE） can be used to calculate the gas-liquid two-phase interior flow field in pulse detonation engine （PDE）. In this paper, the evolution of the detonation wave and the distribution of its physical parameters were analyzed. The numerical results show that the change of axial velocity of gas is the same as that of detonation pressure. The larger the liquid droplet radius is, the longer the time to get stable detonation wave is. The calculated results coincide with the experimented results better.

关 键 词：explosion mechanics pulse detonation engine interior ballistics CE/SE method two-phase detonation numerical calculation 

分 类 号：O381[理学—流体力学]