%0 Journal Article %T Numerical simulation of gaseous detonation reflection over wedges
爆轰波在楔面上反射数值分析 %A Hu Zongmin Gao Yunliang Zhang Deliang Yang Guowei Jiang Zonglin Key Laboratory of High-Temperature Gas Dynamics %A
胡宗民 %A 高云虎 %A 张德良 %A 杨国伟 %A 姜宗林 %J 力学学报 %D 2004 %I %X In this paper, the chemically reacting flow-field of detonation reflection over wedges was simulated numerically. The dispersion-controlled dissipative scheme (DCD) was adopted to solve two-dimensional Euler equations implemented with detailed chemical reaction kinetics of hydrogen-oxygen-argon mixture. The fractional step method was applied to treat the stiff problem arising from computation of chemical reaction flow. The wedge angle, initial pressure and composition of the mixture were taken into consideration respectively to evaluate their effect on the angle $\chi$ of triple-point trajectory of detonation reflection over wedges. From the numerical results it is observed that the critical wedge angle $\alpha_{\rm crit}$ for the transition from Mach reflection to regular reflection of detonation wave is close to the experimental data or CCW theoretical result. The numerical results also show that the angle $\chi$ of triple-point trajectory is mainly depend on wedge angle $\alpha$ and is not sensitive to variation of the initial pressure $P_{0}$. %K detonation wave %K wedge %K reflection %K detailed chemically reacting model %K DCD scheme
爆轰波 %K 楔面 %K 反射 %K 基元反应模型 %K DCD格式 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=A043CB29DF35DA78&yid=D0E58B75BFD8E51C&vid=933658645952ED9F&iid=E158A972A605785F&sid=44FDB9366EDDFA2B&eid=5A735990D5DE8BF4&journal_id=0459-1879&journal_name=力学学报&referenced_num=8&reference_num=8