国家自然科学基金(s11232011)

作品数：5被引量：18H指数：3
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相关期刊：《Acta Mechanica Sinica》《Science China(Physics,Mechanics & Astronomy)》《Applied Mathematics and Mechanics(English Edition)》更多>>
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Instability waves and low-frequency noise radiation in the subsonic chevron jet被引量：5
《Acta Mechanica Sinica》2018年第3期421-430,共10页Lingke Ran Chuangchao Ye Zhenhua Wan Haihua Yang Dejun Sun 
supported by the National Natural Science Foundation of China(Grants 11232011,11402262,11572314,and 11621202);the Fundamental Research Funds for the Central Universities;the China Postdoctoral Science Foundation(Grant 2017M610823)
Spatial instability frequency noise radiation at waves associated with low- shallow polar angles in the chevron jet are investigated and are compared to the round counterpart. The Reynolds-averaged Navier-Stokes equat...
关键词：Instability waves Chevron jet WAVEPACKET Far-field noise 
Model reduction for supersonic cavity flow using proper orthogonal decomposition(POD)and Galerkin projection被引量：2
《Applied Mathematics and Mechanics(English Edition)》2017年第5期723-736,共14页Chao ZHANG Zhenhua WAN Dejun SUN 
Project supported by the National Natural Science Foundation of China(Nos.11232011,11402262,11572314,and 11621202)
The reduced-order model （ROM） for the two-dimensional supersonic cavity flow based on proper orthogonal decomposition （POD） and Galerkin projection is investigated. Presently, popular ROMs in cavity flows are base...
关键词：supersonic cavity flow reduced-order model （ROM） proper orthogonal decomposition （POD） Galerkin projection 
Coherent structures and wavepackets in subsonic transitional turbulent jets被引量：4
《Acta Mechanica Sinica》2017年第1期10-19,共10页Haihua Yang Xingchen Zhang Lingke Ran Dejun Sun Zhenhua Wan 
supported by the National Natural Science Foundation of China (Grants 11232011, 11402262, 11572314, 11621202);the Fundamental Research Funds for the Central Universities
A large eddy simulation (LES) is performed for two subsonic jets with a Reynolds number of , which have different core temperatures, i.e., the cold and hot jet. The far-field overall sound pressure levels (OASPL) and ...
关键词：WAVEPACKET Noise Coherent structure Turbulent jet 
Mode transition and oscillation suppression in supersonic cavity flow被引量：3
《Applied Mathematics and Mechanics(English Edition)》2016年第7期941-956,共16页Chao ZHANG Zhenhua WAN Dejun SUN 
supported by the National Natural Science Foundation of China(Nos.11232011 and11402262);the 111 Project of China(No.B07033);the China Postdoctoral Science Foundation(No.2014M561833);the Fundamental Research Funds for the Central Universities
Supersonic flows past two-dimensional cavities with/without control are investigated by the direct numerical simulation （DNS）. For an uncontrolled cavity, as the thickness of the boundary layer declines, transition ...
关键词：supersonic cavity flow pressure oscillation mode transition vortex-corner interaction 
A numerical study of a turbulent mixing layer and its generated noise被引量：4
《Science China(Physics,Mechanics & Astronomy)》2013年第6期1157-1164,共8页LI Dong GUO Li ZHANG Xing HE GuoWei 
supported by the National Natural Science Foundation of China (Grant Nos. 11232011 and 11021262);the National Basic Research Program of China (Grant No. 2013CB834100)(Nonlinear science)
A direct numerical simulation of a turbulent mixing layer with the Reynolds number 500 and the convective Mach number 0.6 is performed and the results obtained are used to study the turbulent flow field and its genera...
关键词：direct numerical simulation mixing layer space-time correlation noise 
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