Abstract
The basic principles of construction for a towed buoy with a arc-shaped wing are formulated and substantiated in this paper. The main characteristics of a load-bearing wing in an arched configuration are calculated, and the main dependencies and design features of the arched wing are proposed. A mathematical 3D model is built, and its hydrodynamic characteristics are mathematically modelled in the ANSYS software environment.
Experimental investigations of a half-model of an arched wing are conducted in a hydrodynamic tunnel. The model is created by 3D printing, with a Clark-Y chord profile and a tapered wingspan. The wing model is curved in an arc with a radius of 210 mm, covering a 90° sector, and is tested using a special experimental setup in a hydrodynamic tunnel in order to study the hydrodynamic characteristics of oscillating wings. This special experimental setup consists of two main blocks: a two-component strain gauge platform, and an electromechanical drive that provides the harmonic angular oscillations of the wing suspension assembly. The dependencies of the lift and drag coefficients on the angle of attack are determined experimentally. After thorough verification and calibration of the experimental setup, repeated tests are conducted on two geometrically similar wing models.
This work was conducted at the Underwater Technology Research Institute of Admiral Makarov National University of Shipbuilding and the Institute of Hydromechanics of the National Academy of Sciences of Ukraine, as part of the development of modern underwater technology prototypes. The results will be integrated into the curricula of the Admiral Makarov National Shipbuilding University.