Huang Dun, Yang Chun. Numerical Modeling of the lnitial Stage of the Generation of Unsteady Vortices from Sharp Corner in Plane Compressible Flow[J]. Applied Mathematics and Mechanics, 1994, 15(8): 665-670.
 Citation: Huang Dun, Yang Chun. Numerical Modeling of the lnitial Stage of the Generation of Unsteady Vortices from Sharp Corner in Plane Compressible Flow[J]. Applied Mathematics and Mechanics, 1994, 15(8): 665-670.

# Numerical Modeling of the lnitial Stage of the Generation of Unsteady Vortices from Sharp Corner in Plane Compressible Flow

• Publish Date: 1994-08-15
• The impingement of a plane shock wave in air on a rectangular or triangular obstacle is simulated numerically with high resolution TVD(total variation diminishing) scheme in finite volume formulation with Schwarz transformation in mesh generation. The mesh lines are quite adaptive to the physical features of the unsteady flow field and concentrate locally near the corners. At the initial stage the flow field is complex, and the scale of viscous diffusion is verr small and the viscosity of fluid in computation may be neglected. The unsteadr generation of concerntrated vortices downstream of the sharp corner as the result of the nonnuiformity of both temperature and entropy fields in ptane.hzviscid compressible fluid, induced by bow shock wave. is shown clearly and in accordance with optical measurements, performed by our request.
•  [1] Harten,A,,High resolution schemes for hyperbolic conservative laws,J.Comput,Phys.,48(1983),357-393. [2] 黄文生、胡永生,关于平面激波在矩形障碍物上的绕射与反射.《第六届全国激波与激波管学术会议论文集》(1992),1-15. [3] Tsien,H,S,,Equations of Gas Dynamics,Chapter I of Fundamentals of Gas Dynamics,ed.H,W,Emmons,Princeton Univ.Press(1958). [4] Brunesu,C,H.,J.J,Chattot,J.Laminie and R.Teman.Computation of vortea flows past a flat plate at high anale of attack,Lecture Notes in Physics,264(1986).134-140,

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