%0 Journal Article
%T Direct Numerical Simulation of Three-Dimensional Richtmyer--Meshkov Instability<br>Direct Numerical Simulation of Three-Dimensional Richtmyer-Meshkov Instability
%A FU De-Xun
%A MA Yan-Wen
%A LI Xin-Liang
%A <br>傅德薰
%A 马延文
%A 李新亮
%J 中国物理快报
%D 2008
%I 
%X Direct numerical simulation (DNS) is used to study flow characteristics after interaction of a planar shock with a spherical media interface in each side of which the density is different. This interfacial instability is known as theRichtmyer--Meshkov (R-M) instability. The compressible Navier--Stoke equations are discretized with group velocity control (GVC) modified fourth order accurate compact difference scheme. Three-dimensional numerical simulations are performed for R-M instability installed passing a shock through a spherical interface. Based on numerical results the characteristics of 3D R-Minstability are analysed. The evaluation for distortion of the interface, the deformation of the incident shock wave and effects of refraction, reflection and diffraction are presented. The effects of the interfacial instability on produced vorticity and mixing is discussed.
%K 47
%K 20
%K Ma
%K 47
%K 20
%K -k
%K 47
%K 40
%K -x<br>直接数字模拟
%K 流体力学
%K 流动特征
%K 三维Richtmyer-Meshkov不稳定性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=2690BE4AA7239B0BBDE08E8454BE45C4&yid=67289AFF6305E306&vid=C5154311167311FE&iid=CA4FD0336C81A37A&sid=847B14427F4BF76A&eid=6235172E4DDBA109&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=6