Knowledge Management System of Institue of Mechanics, CAS
| Direct Numerical Simulation of Supersonic Turbulent Boundary Layer Flow | |
Gao H(高慧) ; Fu DX(傅德薰); Ma YW(马延文); Li XL(李新亮); Gao, H (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
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| Source Publication | Chinese Physics Letters
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| 2005 | |
| Volume | 22Issue:7Pages:1709-1712 |
| ISSN | 0256-307X |
| Abstract | Direct numerical simulations of a spatially evolving supersonic flat-plate turbulent boundary layer flow with free Mach number M = 2.25 and Reynolds number Re = 365000/in are performed. The transition process from laminar to turbulent flow is obtained by solving the three-dimensional compressible Navier-Stokes, equations, using high-order accurate difference schemes. The obtained statistical results agree well with the experimental and theoretical data. From the numerical results it can be seen that the transition process under the considered conditions is the process which skips the Tolimien-Schlichting instability and the second instability through the instability of high gradient shear layer and becomes of laminar flow breakdown. This means that the transition process is a bypass-type transition process. The spanwise asymmetry of the disturbance locally upstream imposed is important to induce the bypass-type transition. Furthermore, with increasing the time disturbance frequency the transition will delay. When the time disturbance frequency is large enough, the transition will disappear. |
| Subject Area | 力学 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000230529000041 |
| WOS Keyword | INSTABILITY |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/16915 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Gao, H (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Gao H,Fu DX,Ma YW,et al. Direct Numerical Simulation of Supersonic Turbulent Boundary Layer Flow[J]. Chinese Physics Letters,2005,22,7,:1709-1712. |
| APA | 高慧,傅德薰,马延文,李新亮,&Gao, H .(2005).Direct Numerical Simulation of Supersonic Turbulent Boundary Layer Flow.Chinese Physics Letters,22(7),1709-1712. |
| MLA | 高慧,et al."Direct Numerical Simulation of Supersonic Turbulent Boundary Layer Flow".Chinese Physics Letters 22.7(2005):1709-1712. |
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