The fuel concentration distribution and detonation characteristics are important for performance evaluation. In order to meet the needs of airdrop, launcher and missile, the transient flow and detonation process of multiphase fuel in orthogonal flow field are analyzed by experiments and numerical simulations. The dynamic detonation model of ethyl ether (EE), propylene oxide (PO) and tetrahydro dicyclopentadiene (JP-10) is built. The flow process, concentration distribution, overpressure, temperature and detonation wave structure of the three fuels are obtained. The results show that the falling velocity has obvious influence on the detonation process of fuel droplets. The falling velocity of 0.5 Ma makes the fuel concentration distribution more uniform and the energy output is better. The peak overpressure of EE, PO and JP-10 is 2.88 MPa, 3.21 MPa and 2.96 MPa respectively. The peak temperature is 2885 K, 3230 K and 2955 K respectively. The burn out rate increases by 8.5%, 8.1% and 13.7% respectively. JP-10 has higher sensitivity to falling velocity, and there are obvious secondary peaks of overpressure in low-speed state. PO has higher stability for falling velocity, and the scaled length of high temperature/pressure after detonation wave is 0.145 m·kg-1/3.

中文翻译：

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正交流场中典型多相燃料的浓度分布及爆轰特性研究


燃料浓度分布和爆轰特性对于性能评估很重要。为满足空投、发射器和导弹的需求，通过实验和数值模拟分析了正交流场中多相燃料的瞬态流动和爆轰过程。建立了乙醚（EE）、环氧丙烷（PO）和四氢二环戊二烯（JP-10）的动态爆轰模型。得到了三种燃料的流动过程、浓度分布、超压、温度和爆轰波结构。结果表明：下落速度对燃料液滴的爆轰过程有明显影响;0.5 马 的下落速度使燃料浓度分布更均匀，能量输出更好。EE、PO 和 JP-10 的峰值超压分别为 2.88 MPa、3.21 MPa 和 2.96 MPa。峰值温度分别为 2885 K、3230 K 和 2955 K。倦怠率分别增加了 8.5%、8.1% 和 13.7%。JP-10 对下落速度具有更高的敏感性，在低速状态下存在明显的次级超压峰值。PO 对下落速度具有较高的稳定性，爆轰波后高温/高压的标度长度为 0.145 m·kg-1/3。