1D study of the detonation phenomenon and its influence on the interior ballistics of the combustion light gas gun

作     者：Fei Zhou Ning Liu Xiang-yan Zhang Xiu-dong You Fei Zhou;Ning Liu;Xiang-yan Zhang;Xiu-dong You

作者机构：School of Mechanical EngineeringNanjing University of Science and TechnologyNanjing 210094JiangsuChina Troops 91388 of PLAZhanjiang 524022GuangdongChina 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第2期

页      面：341-347页

核心收录：

学科分类：08[工学] 0826[工学-兵器科学与技术] 

基　　金：supported by the Foundation of National Key Laboratory of Shock Wave and Detonation Physics(Grant No.6142A0302020517) 

主　　题：Riemann solver WAF Combustion light gas gun Detonation 

摘      要：One-dimensional simulations with a detailed hydrogen-oxygen reaction mechanism have been performed to investigate detonation phenomenon in a combustion light gas gun(CLGG).Convection fluxes of the Navier-Stokes equations are solved using the WAF(weighted average flux)scheme HLLC Riemann solver.A high resolution fifth-order WENO scheme for the variable extrapolation at the volume interface and a fourth-order Runge-Kutta scheme for the time advancement are *** tests of the stoichiometric hydrogen-oxygen deflagration to detonation transition process shows good agreement between the computed results and the analytical and documented solutions,demonstrating the reliability on the detonation simulation of the current *** results of the interior ballistic process of the CLGG show that the flame propagation experiences three distinct *** blast detonation wave causes a high-pressure shock and hazardous oscillations in the chamber and makes the projectile accelerate with fluctuations,but has only a small improvement to the muzzle velocity.