IMECH-IR  > 高温气体动力学国家重点实验室
Monte Carlo Simulation of two-dimensional Kolmogorov flow
Zhang J(张俊); Fan J(樊菁); Zhang, J (reprint author), Chinese Acad Sci, Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China
Source Publication27TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS, 2010, PTS ONE AND TWO
2011
Pages378-383
Conference Name27th International Symposium on Rarefied Gas Dynamics
Conference DateJUL 10-15, 2010
Conference PlacePacific Grove, CA
AbstractThe two-dimensional Kolmogorov flow generated by an imposed unidirectional forcing varying sinusoidally in space is simulated by using direct simulation Monte Carlo method. Our simulation is performed under the condition of Knudsen number Kn=0.005 and forcing wave number k(f) = 4. When the Reynolds number Re exceeds the critical value Re(c) = root 2, the basic shear flow becomes instable and changes to cellular structures. As Re increases, two main regimes of the flow have been observed: small scale structure (Re(c)7Re(c)). When large scale structure is formed, the energy is inversely transferred from small scale forcing to large scale structure. As Re continues to increase, the evolution of flow field successively becomes quasi-periodical and irregular. This behavior provides a reasonable transition to turbulence with further increase of Re.
KeywordKolmogorov Flow Instability Transition To Turbulence Dsmc
DepartmentLHD微尺度和非平衡流动
Funding OrganizationAsilomar Conf Grounds
ISBN978-0-7354-0889-0
URL查看原文
Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45277
Collection高温气体动力学国家重点实验室
Corresponding AuthorZhang, J (reprint author), Chinese Acad Sci, Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang J,Fan J,Zhang, J . Monte Carlo Simulation of two-dimensional Kolmogorov flow[C]27TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS, 2010, PTS ONE AND TWO,2011:378-383.
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