推力上昇キャビテーション数領域における小型船舶用サイドスラスタの性能と内部流れ

抄録

Small side thrusters installed on small vessels are often operated at high rotational speed near the draft surface and are therefore prone to cavitation. Therefore, it is important to clarify the occurrence of cavitation and its effect on thrust performance at various speeds, but there have been few studies on this subject. In this study, we conducted experiments using a high-speed camera to visualize cavitation and measure thrust, and cavitation analysis on a small side thruster with a propeller diameter of 190[mm]. This paper reports on the effects of cavitation on performance and internal flow in the region of cavitation number with increased thrust.