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Study on Mach stems induced by interaction of planar shock waves on two intersecting wedges
Xiang GX(项高翔); Wang C(王春); Teng HH(滕宏辉); Yang Y; Jiang ZL(姜宗林); Wang, C (reprint author), Chinese Acad Sci, Inst Mech, 15 Beisihuan Xi Rd, Beijing 100190, Peoples R China.
Source PublicationACTA MECHANICA SINICA
2016
Volume32Issue:3Pages:362-368
ISSN0567-7718
Abstract

The properties of Mach stems in hypersonic corner flow induced by Mach interaction over 3D intersecting wedges were studied theoretically and numerically. A new method called "spatial dimension reduction" was used to analyze theoretically the location and Mach number behind Mach stems. By using this approach, the problem of 3D steady shock/shock interaction over 3D intersecting wedges was transformed into a 2D moving one on cross sections, which can be solved by shock-polar theory and shock dynamics theory. The properties of Mach interaction over 3D intersecting wedges can be analyzed with the new method, including pressure, temperature, density in the vicinity of triple points, location, and Mach number behind Mach stems. Theoretical results were compared with numerical results, and good agreement was obtained. Also, the influence of Mach number and wedge angle on the properties of a 3D Mach stem was studied.

Keyword3d Shock/shock Interaction Mach Interaction Spatial Dimension Reduction
DOI10.1007/s10409-015-0498-2
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000379181600002
WOS Keyword3d Shock/shock Interaction ; Mach Interaction ; Spatial Dimension Reduction
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationThe project was supported by the National Natural Science Foundation of China (Grants 11372333, 90916028).
DepartmentLHD激波与爆轰物理
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59515
Collection高温气体动力学国家重点实验室
Corresponding AuthorWang, C (reprint author), Chinese Acad Sci, Inst Mech, 15 Beisihuan Xi Rd, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Xiang GX,Wang C,Teng HH,et al. Study on Mach stems induced by interaction of planar shock waves on two intersecting wedges[J]. ACTA MECHANICA SINICA,2016,32(3):362-368.
APA Xiang GX,Wang C,Teng HH,Yang Y,Jiang ZL,&Wang, C .(2016).Study on Mach stems induced by interaction of planar shock waves on two intersecting wedges.ACTA MECHANICA SINICA,32(3),362-368.
MLA Xiang GX,et al."Study on Mach stems induced by interaction of planar shock waves on two intersecting wedges".ACTA MECHANICA SINICA 32.3(2016):362-368.
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