Study of Discrete Modes Branching in High-Speed Boundary Layers

被引：5

作者：

Lifshitz, Yuli ^{[1
]}

Degani, David ^{[1
]}

Tumin, Anatoli ^{[2
]}

机构：

[1] Technion Israel Inst Technol, Dept Mech Engn, IL-32000 Haifa, Israel

[2] Univ Arizona, Dept Aerosp & Mech Engn, Tucson, AZ 85721 USA

来源：

AIAA JOURNAL | 2012年 / 50卷 / 10期

关键词：

INITIAL-VALUE PROBLEM; NUMERICAL-SIMULATION; FLAT-PLATE; RECEPTIVITY; STABILITY; INSTABILITY;

D O I：

10.2514/1.J051547

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The branching of discrete modes in high-speed boundary layers is investigated using parabolized stability equations. The fast and slow discrete modes associated with the fast and slow acoustic modes, respectively, are considered in high-speed boundary layers over adiabatic and cooled walls. Whereas the conventional linear stability theory approach leads to singular behavior in the vicinity of the fast-mode synchronization with the entropy and vorticity modes, the parabolized stability equation results do not reveal singular behavior of the solution and are consistent with the available direct numerical simulations of perturbations in high-speed boundary layers. Also, the parabolized stability equation results do not reveal a singular behavior in the vicinity of the point of synchronism of the slow and fast discrete modes.

引用

页码：2202 / 2210

页数：9

共 24 条

[1] On a stabilization procedure for the parabolic stability equations
Andersson, P
Henningson, DS
Hanifi, A
[J]. JOURNAL OF ENGINEERING MATHEMATICS, 1998, 33 (03) : 311 - 332
[2] Bertolotti F. P., 1991, THESIS OHIO SCI U CO
[3] Chang C.-L., 1991, 22 FLUID DYN PLASM D
[4] Chang C.-L., 1993, 19932912 AIAA
[5] Receptivity of a hypersonic boundary layer over a flat plate with a porous coating
Egorov, I. V.
Fedorov, A. V.
Soudakov, V. G.
[J]. JOURNAL OF FLUID MECHANICS, 2008, 601 (165-187) : 165 - 187
[6] Initial-value problem for hypersonic boundary-layer flows
Fedorov, A
Tumin, A
[J]. AIAA JOURNAL, 2003, 41 (03) : 379 - 389
[7] Fedorov A. V., 1991, Fluid Dynamics, V26, P531, DOI 10.1007/BF01050314
[8] Fedorov A. V., 1993, P ASME FLUID ENG C, V151, P1
[9] High-Speed Boundary-Layer Instability: Old Terminology and a New Framework
Fedorov, Alexander
Tumin, Anatoli
[J]. AIAA JOURNAL, 2011, 49 (08) : 1647 - 1657
[10] Transition and Stability of High-Speed Boundary Layers
Fedorov, Alexander
[J]. ANNUAL REVIEW OF FLUID MECHANICS, VOL 43, 2011, 43 : 79 - 95

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