In order to ensure the ballistic safety of fusible alloy fuze at reliable delay arming, melting point of fusible alloy needs to be calculated based on projectile velocity at safe time and distance. Taking shrapnel KZVD fuze of Switzerland oerlikon 2ZLa/353 35 mm double barrel self-propelled antiaircraft artillery as an example, based on the aerodynamics heating theory, the calculation of theory model and simulation of projectile head stagnation point temperature were done in initial stage of sim-plified exterior ballistic from engineering viewpoint when the initial projectile velocity was 1 175 m/s and the error was ±15 m/s. The melting point of fusible alloy in the safe distance was obtained by analyzing the temperature of projectile head stagnation point at corresponding projectile velocity. The simulated results indicate that the melting point of fusible alloy de-rived by theoretical calculation is identical with the result of simulation at the velocity range of 1 160 to 1 190 m/s. So the aero- thermodynamics model can be applied to design the fusible alloy fuze of corresponding melting point based on the requirement of safe distance. This method can be taken as the reference in studying the thermodynamic question of projectile flying at high speed.
这是一本写得很成功的有关气动热力学的引论专著,特别关注于有翼再人飞行器和吸气式高超声速巡航以及加速飞行器的气动热力学。本书综述了动量、能量和质量的输运,真实气体效应,以及无粘和有粘流动现象等方面的内容。本书的第1版是由AIAA(American Institute of Aeronautics & Astronautics)出版社在2004年出版的。修订版中,气动热力学的一些传统课题或多或少未加以讨论;而主要关注某些具有实际兴趣的课题。一些辅助性的内容放在附录之中。最近,X-43A和X-51A的成功飞行表明:可持久的吸气式高超声速飞行的黎明已经到来。