Table 4 Summary of the aeroelastic behaviour observed for different \(\overline{\omega }\) case at different preset angle.
\(\overline{\omega }\) | Preset angle | \(U_{cr}\)Â (m/s) | \(U_{fold}\)Â (m/s) | Aeroelastic response dynamics |
|---|---|---|---|---|
\(\overline{\omega }\) = 0.75 | \(0^\circ\) | 13.6 | 8.7 | Stall flutter LCOs |
\(5^\circ\) | 13.3 | 9 | ||
\(10^\circ\) | 13.4 | 9.4 | ||
\(15^\circ\) | 13.1 | 10.3 | ||
\(20^\circ\) | 9.1 | 7.9 | Low amplitude LCOs \(\longrightarrow\) High amplitude LCOs | |
\(\overline{\omega }\) = 0.62 | \(0^\circ\) | 17.3 | 10.7 | Stall flutter LCOs |
\(5^\circ\) | 16.1 | 11.8 | ||
\(10^\circ\) | 14.3 | 12 | ||
\(15^\circ\) | 14 | 11.3 | ||
\(20^\circ\) | 13.2 | 11.1 | ||
\(\overline{\omega }\) = 0.56 | \(0^\circ\) | 17.6 | 14.4 | Stall flutter LCOs |
\(5^\circ\) | 17.4 | 15.3 | ||
\(10^\circ\) | 17.9 | 15.5 | ||
\(15^\circ\) | 16.6 | 15.1 | ||
\(20^\circ\) | 7.5 | 6.4 | Low amplitude LCOs \(\longrightarrow\) High amplitude LCOs |
