Abstract
A turbulent transonic flow past two symmetric airfoils with flat midparts is studied numerically. Using the Reynolds-averaged Navier-Stokes equations, we analyze the flow past a 9% thick airfoil with an elliptic nose. A range of the free-stream Mach number M∞, in which flow bifurcations occur, is determined. Values of M∞that give rise to significant changes in the lift coefficient with variations of the angle of attack are specified. Flow bifurcations are also revealed for a thin double wedge, i.e., a sort of a hexagon.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 51, No. 1, pp. 22–28, January–February, 2010.
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Kuz’min, A.G. Bifurcations of transonic flow past simple airfoils with elliptic and wedge-shaped noses. J Appl Mech Tech Phy 51, 16–21 (2010). https://doi.org/10.1007/s10808-010-0004-3
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DOI: https://doi.org/10.1007/s10808-010-0004-3