| An experimental investigation of an oscillating hydrofoil propulsion system working behind a model of a small submersible was conducted. Tests were carried out both for a single foil and for systems of two foils. The tests with two foils considered various possible interactions between the foils. In order to understand the influence of trailing vortices of the foils on efficiency of the propulsion system, the two foils were tested for three different combinations of their relative wing spans. All of the above tests were carried out for two types of foil motion, one in which the pitch distribution was prescribed and the other in which the pitch depended on the motion characteristics. |
