SUBHARMONIC

作品数：41被引量：96H指数：4
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相关作者：赵明华陈永忠钟少鹏张骏强汪宝亮更多>>
相关机构：中国科学院上海应用物理研究所更多>>
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Numerical study on evolution of subharmonic varicose low-speed streaks in turbulent channel flow被引量：2
《Applied Mathematics and Mechanics(English Edition)》2016年第3期325-340,共16页Jian LI Gang DONG Jianlei ZHANG 
supported by the National Natural Science Foundation of China(Nos.11372140 and11202102);the Innovation Project for College Graduates of Jiangsu Province(No.CXZZ13-0189)
The evolution of two spanwise-aligned low-speed streaks in a wall turbulent flow, triggered by the instability of the subharmonic varicose （SV） mode, is studied by a direct numerical simulation （DNS） method in a s...
关键词：low-speed streak subharmonic varicose mode turbulent boundary layer direct numerical simulation 
Numerical simulation on evolution of subharmonic low-speed streaks in minimal channel turbulent flow被引量：1
《Applied Mathematics and Mechanics(English Edition)》2013年第9期1069-1082,共14页李健 董刚 
supported by the National Natural Science Foundation of China(No.11202102);the Innovation Project for College Graduates of Jiangsu Province(No.CXZZ13_0189);the Specialized Research Fund for Doctoral Program of Higher Education of China(No.20123219120050)
The evolution of low-speed streaks in the turbulent boundary layer of the minimum channel flow unit at a low Reynolds number is simulated by the direct numer- ical simulation （DNS） based on the standard Fourier-Cheb...
关键词：low-speed streak streamwise vortice instability ENSTROPHY directnumerical simulation （DNS） 
A 1/3 PURE SUBHARMONIC SOLUTION AND TRANSIENT PROCESS FOR THE DUFFING'S EQUATION
《Applied Mathematics and Mechanics(English Edition)》2001年第5期586-592,共7页徐玉秀 鲍文博 W.Schiehlen 胡海岩 
国家自然科学基金
The 1/3 subharmonic solution for the Duffing’s equation is investigated by using the methods of harmonic balance and numerical integration. The sensitivity of parameter variation for the transient process and the tra...
关键词：Duffing's equation SUBHARMONIC transient process 
THE MLP METHOD FOR SUBHARMONIC AND ULTRA-HARMONIC RESONANCE SOLUTIONS OF STRONGLY NONLINEAR SYSTEMS
《Applied Mathematics and Mechanics(English Edition)》2000年第10期1153-1160,共8页唐驾时 
A new parameter transformation alpha = alpha (epsilon, n omega (0)/m, omega (l)) was defir2ed for extending the applicable range of the modified Lindstedt-Poincare method. It is suitable for determining subharmonic an...
关键词：strongly nonlinear system subharmonic and ultraharmonic resonance parameter transformation 
SUBHARMONIC AND ULTRA_SUBHARMONIC RESPONSE OF NONLINEAR ELASTIC BEAMSSUBJECTED TO HARMONIC EXCITATION
《Applied Mathematics and Mechanics(English Edition)》1999年第12期1319-1323,共5页张年梅 杨桂通 
In this paper, the dynamics response of beams subjected to transverse harmonic excitation is studied. The nonlinearity of constitutive relations of the beam material is considered. When the buckled beams compressed by...
关键词：NONLINEAR dynamic system BIFURCATION 
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