Abstract
To meet the demand for flying both in air and water, a conformal semi-ring wing (CSRW) configuration is proposed based on the extendable ring wing concept. The configuration is designed into aero and hydro isomer which can transform from one to the other by rotating the semi-ring wing around aircraft axis symmetrically. The job is to solve the contradiction between aerodynamic and hydrodynamic configuration. And dynamic performance of corresponding configuration is computed by ANSYS-CFX under granted speed. Some useful results are achieved that, under the same flying conditions, the lift and drag characteristic of aero configuration is close to the plain wing configuration with the same aerofoil, chordal length and equivalent area, which is not as good as predicted for the restrict of the wingspan to the body diameter, while the performance of hydro configuration is approximate to torpedo configuration, and when the aero configuration voyages in water, the wing produces vast unwanted drag and lift. All the results validate the rationality and necessity of the two deployments and morphing scenario of CSRW configuration.
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