Open AccessTransonic flow bifurcations over a double wedge
Author(s) -
Alexander Kuzmin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012207
Subject(s) - transonic , inviscid flow , wedge (geometry) , mach number , mathematics , euler equations , flow (mathematics) , polygon mesh , physics , mechanics , mathematical analysis , geometry , aerodynamics
Inviscid and turbulent airflows over a symmetric flat-sided double wedge are studied numerically. Solutions of the Euler and Navier-Stokes equations are obtained with a finite-volume solver on fine meshes. The solutions demonstrate both symmetric and asymmetric flow regimes in significant bands of the free-stream Mach number at zero angle of attack. The realization of a certain regime depends on the time history of boundary conditions. A physical interpretation of transitions between the symmetric and asymmetric flows is suggested.