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Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements
Dong M; Li XL(李新亮); Dong, M (reprint author), Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China
Source PublicationScience China-Physics Mechanics & Astronomy
2011
Volume54Issue:10Pages:1889-1898
ISSN1674-7348
AbstractTurbulence modeling has played important roles in solving engineering problems. However, with the development of aerospace technology, turbulence modeling faces new challenges. How to further improve turbulence modeling for super/hypersonic flows is an urgent problem. Through analyzing a set of data resulting from DNS and experiments, it is found that some most popular models suffer from essential flaws, and can be hardly improved following the traditional mode of thinking. On the contrary, the BL model, which is one of the simplest and widely-used models, can be further improved. In this paper, through analyzing results from DNS data, the main cause of the inaccuracy in applying the BL model to supersonic and hypersonic turbulent boundary layers is found to have resulted from the mismatch between the location of the matching point of the inner and outer layers of the BL model determined by the conventional way and those given by DNS. Improvement on this point, as well as other improvements is proposed. Its effectiveness is verified through the comparison with DNS results.
KeywordTurbulence Modeling Supersonic Hypersonic Turbulent Boundary Layer Dns Bl Model Direct Numerical-simulation Temperature Computation Flows
Subject AreaPhysics
DOI10.1007/s11433-011-4450-6
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000295213100026
WOS KeywordDIRECT NUMERICAL-SIMULATION ; TEMPERATURE ; COMPUTATION ; FLOWS
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationThe cooperation of the two authors of this paper was brought about by Professor Zhou Heng of Tianjin University, and Professor Zhou has also made valuable contributions to the paper in the form of offering suggestions and comments to the first author, to which we are grateful. This work was supported by the National Basic Research Program of China (Grant No. 2009CB724103) and the National Aeronautics Base Science Foundation of China (Grant No. 2010ZA48002).
DepartmentLHD可压缩湍流
Classification二类/Q3
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45168
Collection高温气体动力学国家重点实验室
Corresponding AuthorDong, M (reprint author), Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Dong M,Li XL,Dong, M . Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements[J]. Science China-Physics Mechanics & Astronomy,2011,54(10):1889-1898.
APA Dong M,李新亮,&Dong, M .(2011).Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements.Science China-Physics Mechanics & Astronomy,54(10),1889-1898.
MLA Dong M,et al."Problems of the conventional BL model as applied to super/hypersonic turbulent boundary layers and its improvements".Science China-Physics Mechanics & Astronomy 54.10(2011):1889-1898.
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