高圧空気を駆動源とする船舶用推進装置の性能向上に関する研究 : アクチュエータ増設による性能向上

概要

論文の詳細を見る
We describe here an experimental study of a new type of nozzle which generates a high-speed two-phase water jet as a propulsion device for aship. In order to investigate performance improvement of this nozzle, two types of the improved device were proposed. The first type has the same structure as that of an axially symmetrical nozzle equipped with propeller and turbine. The second type has a cap of U-shaped cross section in front of the two-dimensional nozzle without bottom. These devices were set in a towing tank, and thrust was measured for various parameters such as air jnjection angle, pressure of injection gas, and towing speed. The thrusts of these two types of device increase as compared with those of the original type. The maximum propulsion efficiency is about 20% at the flow velocity of 1. 5 m/s. It was proven that the two types of actuators improve the performance of this device.
社団法人日本機械学会の論文
1995-10-25