CAJ | 학술논문

以某拖网渔船的导管桨与舵作为研究对象，利用FLUENT软件分别对该渔船导管桨敞水以及桨-舵系统的水动力性能进行了系统研究。探索了舵的存在对导管桨性能以及桨后尾流的影响，研究了不同舵角下桨-舵系统的水动力性能。研究结果表明：舵的存在降低了导管桨的水动力性能。随着舵角的增大，整个系统的推进效率逐渐减小；进速系数越大，推进效率降低越明显。
이모타망어선적도관장여타작위연구대상，이용FLUENT연건분별대해어선도관장창수이급장-타계통적수동력성능진행료계통연구。탐색료타적존재대도관장성능이급장후미류적영향，연구료불동타각하장-타계통적수동력성능。연구결과표명：타적존재강저료도관장적수동력성능。수착타각적증대，정개계통적추진효솔축점감소；진속계수월대，추진효솔강저월명현。
Based on ducted propeller and rudder of 42 m trawler,the computational fluid dynamics soft-ware Fluent was used to calculate and compare the hydrodynamic performance of the ducted propeller and the propeller-rudder system. The existence of rudder effect on the hydrodynamic performance of the ducted pro-peller and the wake flow behind the propeller was analyzed, and the hydrodynamic performance of propeller-rudder system under different rudder angles was calculated. The result shows that the existence of rudder de-creased the hydrodynamic performance of ducted propeller.