正庚烷云雾爆轰特性的研究

STUDIES OF THE DETONATION CHARACTERISTICS OF HEPTANE CLOUD

本文从理论和实验上研究了正庚烷的云雾爆轰特性。实验中采用红外技术、传感器技术、烟膜技术分别测量了正庚烷云雾引爆的延迟时间t_(DDT),爆速D,爆压p和爆轰波阵面结构。在理论上提出了含有化学反应项的液滴燃烧模型,进行了正庚烷云雾爆轰过程的数值模拟。计算结果和实验基本符合。

In this paper, the detonation characteristics of heptane cloud are studied theoretically and experimentally. In the experiments, the ultra-violet technique. gauge technique and smoke film technique are adopted for the measurements of the delayed time t_(DDT), velocity, pressure and wave front structure of the detonation. The model of chemical reaction of the heptane drop deflagration is suggested theoretically The results of numerical modeling of the process of the detonation of the heptane cloud are in accord with that of the experiments approximately.