Numerical Simulation of Deflagration to Detonation Transition in High-Energy Propellant

4th International Conference on Manufacturing, Material and Metallurgical Engineering

Wang, Zhuo-Qun^1 ; Wang, Li-Qiong^1 ; Zhen, Fei^1

Beijing Institute of Technology, Mechatronical Engineering Department, Beijing

100081, China^1

关键词: ALE Methods;    Deflagration to detonation transition;    Detonation pressure;    Detonation velocity;    High energy propellant;    Numerical results;    Reactive flow model;    Safety analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/538/1/012051/pdf
DOI  :  10.1088/1757-899X/538/1/012051

来源: IOP

【 摘 要 】

The deflagration to detonation transition model was established based on AUTODYN/ANSYS to simulate the process of DDT and provide a basis for the safety analysis of high-energy propellant. The process of DDT was numerically simulated by the ignition and growth reactive flow model and ALE method. The detonation pressure, detonation velocity, the run distance and time to detonation were calculated. The simulating results indicate that the detonation velocity is about 2899m/s, the run distance to detonation is about 138.3mm when the density of propellant is 1860kg/m3. The numerical results are in a good agreement with the experimental results.