论文部分内容阅读
大弹径的无缝单孔棒状推进剂的侵蚀燃烧效应,对其内弹道性能有显著的影响。为研究其侵蚀燃烧现象,提出了一种着重强调湍流与燃烧相互作用的易行模型。实验台上用的是一种设计成大肉厚的(约1.0cm)、中孔圆筒形药柱。药柱燃面的瞬时位置,用实时X射线照相术来测定。X射线照片表明,在强横向流作用下,实测的NOSOL—363棒状推进剂的瞬时燃速,明显地高于它的线燃速(4—32倍)。证明了这种测试方法的有效性。
Erosion and combustion effects of the large diameter seamless single-hole rod propellant have a significant impact on its internal ballistic performance. In order to study its erosion and combustion phenomena, a feasible model that emphasizes the interaction between turbulence and combustion is proposed. The experimental stage is designed with a large meat fleshy (about 1.0cm), cylindrical microporous. The instantaneous position of the burning face of the column was measured by real-time radiography. X-ray photographs showed that the instantaneous burning rate of the measured NOSOL-363 rod propellant was significantly higher than its linear burning rate (4-32 times) under strong lateral flow. This test proved the effectiveness of this method.