On three-dimensional hypersonic flow fast slender airfoils

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“…Approximate solutions of problems of this kind involving the flow past slender pointed bodies and blunt bodies were considered by Soviet scientists both in the case of weak interaction, corresponding to moderate values of Mach number and rela tively large values of Reynolds number (167)(168)(169), and in the case of strong interaction at very high Mach numbers and finite values of Reynolds num ber (170)(171)(172)(173)(174)(175)(176). Some cases of three-dimensional flows (triangular flat plate, slender body at small angle of attack) were also studied (177)(178)(179). Extreme complications arise in the consideration of intermediate cases between weak and strong interaction, especially cases of variation along the boundary layer of the intensity of interaction, with strong variation normal to the body surface of gas entropy and vorticity arising in this situation in the external nonviscid flow (180).…”