V. V. Prokofiev, E. A. Arkhangelsky, A. V. Boyko, E. V. Filatov
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引用次数: 0
Abstract
The efficiency of two types of wave propulsors (WPs) (a swinging spring-loaded wing WP and a direct-flow WP) is experimentally studied on a model of a small-waterplane-area-twin-hull (SWATH) boat. The NACA0015 airfoil was used as an operating element of both the swinging and the direct-flow WPs. In the case of a direct-flow WP, the flat airfoil was rigidly fixed relative to the boat hull with a chord inclination of 30°. The operating efficiency of the wave propulsors is studied for waves of various lengths depending on the draft of the SWATH boat hulls, and in the case of a swinging spring-loaded wing WP, also on the submergence depth of the propulsor. Using the results of towing tests, the thrust force of a direct-flow WP is estimated under various operating conditions. It is found that with increase in the submergence depth of the boat hulls, the efficiency of the direct-flow WP increases, while the efficiency of the swinging WP decreases, however, it largely retains its operability, provided that the WP operating element remains at the optimal depth close to the water surface.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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