スーパー・キャビテーティング・プロペラの性能計測に関する研究

概要

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This paper describes extensive experiments on the hydrodynamic characteristics of nine super-cavitating propellers (hereafter SCPs) performed at the SRI Large Cavitation Tunnel. The SRI successfully made a project to develop a reliable design method on the SCP with higher efficiency than the existing ones. In this project, an accurate analytical method was also developed on the SCP performance based on a vortex lattice method, SC-VLM. Some of them were designed by the newly developed design method together with SC-VLM. On the other hand, reliable experiemental evaluation on hydrodynamic characteristics of SCPs was demanded in this project. Several efforts were made to improve the measurement procedure for the SCP performance through the present extensive experiments. In the cavitation experiments, two kinds of dynamometers were used to examine the reliability in the measurements and to clarify the viscous effects on the hydrodynamic performance of the SCP. The propeller open characteristics of these propellers were measured by using two kinds of dynamometers in a towing tank. This paper also discusses the influence of the measuring devices and the experimental facilities on the measurements. The present extensive reliable measurement on the SCPs will be utilized to develop a more regorous theory on them and other propellers for high speed ships.
独立行政法人海上技術安全研究所の論文
1994-11-30