프로펠러의 뿌리 캐비테이션에 대한 제어핀의 실험적 연구

Abstract

Most of the high-speed propellers with large inclined shaft angle have the severe erosion problem by root cavitation around propeller blade root. These phenomena occure because of the upward flow created by the inclined shaft. In order to control the upward flow and improve the erosion problem by root cavitation, Root Cavitation Control Fin(RCCF) was designed and installed at the strut barrel of the propeller upstream and its performance was investigated experimently. It was proven that the RCCF controls the root cavitation effectively and makes the erosion performance improve. In the future, it is thought that the RCCF should be studied in detail at the viewpoint of optimum pitch angle, shape, installation position and resistance performance