Summary
A phase plane analysis is successfully applied to nonlinear angular oscillation and rotation of two-dimensional bodies at high angles of attack to obtain the analytical expression of the moment acting on the bodies in unsteady free rotation tests. The analytical expression of the moment is useful to investigate the energy exchange between the bodies and flow. By integration it reproduces angular motions close to those observed in wind tunnel tests. In the following article the method and results are explained for the autorotation of two-dimensional bodies in a wind tunnel by a free-rotation method at Reω~.3.5 × l04.
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© 1993 Springer-Verlag Berlin Heidelberg
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Yoshinaga, T., Tate, A., Inoue, K. (1993). Phase Plane Analysis for Nonlinear Oscillation of Bodies at High Angles of Attack. In: Kawamura, R., Aihara, Y. (eds) Fluid Dynamics of High Angle of Attack. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-52460-8_21
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DOI: https://doi.org/10.1007/978-3-642-52460-8_21
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