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个人信息Personal Information
特聘研究员
博士生导师
硕士生导师
任职 : 空气动力学会委员会委员；国家重大科技工程专项气动力/热专家组成员；《空气动力学报》编委；《气体物理》编委；
性别：男
毕业院校：中国空气动力研究与发展中心
学位：博士
所在单位：力学与航空航天学院
学科：飞行器设计. 流体力学
办公地点：大连理工大学综合实验一号楼203
联系方式：0411-84707176
电子邮箱：liujun65@dlut.edu.cn
New uncoupling finite volume method for simulation of non-equilibrium flow and its application to supersonic combustion instability
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论文类型：期刊论文
发表时间：2013-09-01
发表刊物：Transactions of Nanjing University of Aeronautics and Astronautics
收录刊物：EI、Scopus
卷号：30
期号：SUPPL.1
页面范围：28-34
ISSN号：10051120
摘要：A new numerical method based on finite volume to simulate non-equilibrium flow is established by using the idea of Strang's splitting scheme. This uncoupling method is efficient to solve the stiffness problem of the non-equilibrium flow and is easy to implement for different chemical mechanism. The method is second order spatial and temporal accuracy in theory. For validating this method, the constant volume explosion, the H2/O2/Ar detonation and the phenomenon of oscillating combustion induced by shock in H2/Air mixing gas are simulated and the results agree well with experiment and other reference results. Then the influence of projectile's shape on the modes of oscillating combustion is studied. These projectiles are obtained by cutting a hemisphere by a plane. It is found that the oscillating frequency changes abruptly from 400 kHz to 75 kHz when the cutting angle varies from 18.2 to 18.8 .