论文部分内容阅读
为研究引信传爆管在快速烤燃作用下的热响应规律,对考虑导爆药柱作用的聚奥-9C(JO-9C)装药的引信传爆管进行了快速烤燃实验。利用Fluent对引信传爆管在60 K/min升温速率下快速烤燃过程的热响应规律进行了数值模拟,并与烤燃实验结果进行了对比验证,标定了JO-9C的活化能与指前因子,分别为1.69×10~5J/mol与2.1×10~(15)s~(-1)。基于引信传爆管的快速烤燃实验和模型参数,对15、35、75 K/min三种不同升温速率下引信传爆管的快速烤燃过程进行了数值模拟,结果表明:在引信传爆管点火时,传爆药柱先发生热反应,引起导爆药柱发生爆燃;在不同的升温速率下,点火位置均在传爆药柱边角;随着升温速率的增加,点火时传爆药柱边角处温度增加。
In order to study the thermal response of fuze squib under the fast burning and burning effect, a rapid burning experiment was carried out on fuze booster tube of poly-9C (JO-9C) charge considering the action of the detonating charge. Fluent was used to simulate the thermal response of the fuze tube rapidly burning at a heating rate of 60 K / min, and the results were contrasted and verified with the experimental results. The activation energy of JO- Factor of 1.69 × 10 ~ 5 J / mol and 2.1 × 10 ~ (15) s ~ (-1) respectively. Based on the fast burning experiments and model parameters of fuze booms, the fast firing process of fuze booms at 15, 35 and 75 K / min was simulated numerically. The results show that when fuze explosion When the tube is ignited, the heat transfer column first undergoes a thermal reaction, causing the deflagration column to explode. At different heating rates, the ignition positions are at the corners of the explosive column; as the heating rate increases, The temperature at the corner of the column increases.