TY - JOUR
T1 - Study on Mach stems induced by interaction of planar shock waves on two intersecting wedges
AU - Xiang, Gaoxiang
AU - Wang, Chun
AU - Teng, Honghui
AU - Yang, Yang
AU - Jiang, Zonglin
N1 - Publisher Copyright:
© 2015, The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - 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. Graphic abstract: [Figure not available: see fulltext.]
AB - 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. Graphic abstract: [Figure not available: see fulltext.]
KW - 3D shock/shock interaction
KW - Mach interaction
KW - Spatial dimension reduction
UR - http://www.scopus.com/inward/record.url?scp=84944520622&partnerID=8YFLogxK
U2 - 10.1007/s10409-015-0498-2
DO - 10.1007/s10409-015-0498-2
M3 - Article
AN - SCOPUS:84944520622
SN - 0567-7718
VL - 32
SP - 362
EP - 368
JO - Acta Mechanica Sinica/Lixue Xuebao
JF - Acta Mechanica Sinica/Lixue Xuebao
IS - 3
ER -