导弹用吸气式两相脉冲爆震发动机可行性研究

设计了内径为60 mm的吸气式两相脉冲爆震发动机,并在冷流条件下测试了进气道的流阻系数。在接近大气压条件下,成功地进行了以汽油为燃料、以空气为氧化剂的吸气式两相脉冲爆震发动机原理性试验。试验中在爆震管内部安装Shchelk in螺旋来促进爆震波的生成,所测量的爆震波压强接近充分发展的爆震波,发动机最高工作频率达到15 H z;进气道内压强变化幅度小于0.1 M Pa,说明所设计的进气道与爆震管匹配良好,这为将脉冲爆震发动机用于工程实际提供了技术储备。

Exploring Feasibility of Missile's Employment of Air-Breathing Two-Phase PDE (Pulse Detonation Engine)

Aim.We have gradually come to believe that recent progress in PDE research has made it quite feasible to let missiles,UAVs and UCAVs to employ airbreathing two-phase PDE.We now report the results of our exploratory study on such feasibility.In the full paper,we explain in detail our exploration;in this abstract,we just add some pertinent remarks to the two topics of our explanation:(A) experimental method and setup;Fig.1 in the full paper shows the schematic of our experimental air-breathing PDE model,60mm in inside diameter,which includes the well-known Shchelkin spiral;(B) experimental results and analysis; under cool flow conditions,the inner flow resistance coefficient of the inlet was measured;under nearly atmospheric pressure,a proof-of-principle experiment of a two-phase air-breathing PDE model was successfully carried out;we developed liquid C_8H_(18)/air mixture for this study;Figs.2 through 6 in the full paper show clearly the very important fact that the measured detonation wave pressure was very close to that of fully developed detonation;the PDE model was operated at a repetition frequency up to 15 Hz with the pressure's variation inside the intake always within 0.1 MPa experimentally,implying that the intake designed matches the detonation tube well.