Calculation of supersonic flow past wings with consideration of tangential discontinuities shed from the edges within the scope of a model using a system of euler equations

Chapter 8: Numerical Study of Specific Features of Heat Transfer in a Hypersonic Flow Around a Blunted Cone Lying on a Triangular Plate with Blunted Edges

“…The flow around an extremely important element of such a configuration (i.e., a blunted delta wing or a flat plate with sharp edges) has been intensely studied for the last several decades, both by experimental methods and numerically. Numerous regimes of the flow around pointed configurations, which depend on the geometric parameters of wings and on the governing gas-dynamic parameters of the flow [3][4][5], have been considered.…”

Processing of Gasdynamic Numerical Solutions in Similarity Parameters

“…These flows can be classified with respect to the position and the form of the flow divergence and convergence lines on the wing undersurface [18], the form of the conical domains of influence (regimes A to D in [16,19]), and the form of possible conical regions of flow separation from the wing surface [19]. Plates with both subsonic and supersonic edges, with and without flow separation from the edges [20], were calculated.…”

“…The ranges of variation of the parameters θ , M, and α determining the separation flow regime do not coincide in the case of a numerical solution, depending on the calculation method, and the exact solution of the Euler equations. For them to coincide and to construct solutions with separation the algorithm [20] for their determination and construction is used. The only requirement restricting the application of the method is that the flow must remain supersonic and conical.…”

“…Its width characterizes the accuracy of the numerical results and amounts to about 3% of C y . In the Ω > 2 region, where the theory [26] entire range of variation of Ω falls in the range of the flow with separation from the edges (the band is located above curve 1-2), while the curve is plotted according to the results obtained without introducing the separation algorithm [20], in order to take the latter into account, the coefficient F(Ω) incorporates a 3% correction (cf. Section 3).…”