二段直列Weis-Fogh型船舶推進機構 : 第2報,水槽での特性実験

The dynamic properties of a ship's propulsion mechanism consisting of two-series wings in a square channel are experimentally investigated. The time history of the trust and the drag acting on the wings moving in a circulation water tank are measured. In order to clarify the effect of the interaction of the two wings, They are equipped to move in a short distance. The opening angle and the moving speed are the same for the two wings, and the phase of the motion of the two is taken two cases, the same and reversed. For each case, the propulsive efficiency is calculated, and the difference of the properties between the two wings is discussed.