CAJ | 학술논문

针对导管桨的设计和优化问题，提出了螺旋桨环流理论、泵升力法相结合的方法。在设计过程中，采用升力线理论变分法求解最佳环量、泵升力法设计桨叶剖面、面元法预报导管桨性能和流场，通过迭代的方式获得推进性能收敛的导管桨。应用该方法对某案例进行了导管桨设计，并采用CFD方法对设计结果进行了验证，结果表明：该方法设计的导管桨能够满足设计要求；与其他方法设计结果对比表明，采用该方法设计的导管桨推进性能和空泡性能更好。
침대도관장적설계화우화문제，제출료라선장배류이론、빙승역법상결합적방법。재설계과정중，채용승력선이론변분법구해최가배량、빙승역법설계장협부면、면원법예보도관장성능화류장，통과질대적방식획득추진성능수렴적도관장。응용해방법대모안례진행료도관장설계，병채용CFD방법대설계결과진행료험증，결과표명：해방법설계적도관장능구만족설계요구；여기타방법설계결과대비표명，채용해방법설계적도관장추진성능화공포성능경호。
In this paper, a method is proposed for the optimal design of a ducted propeller.The proposed method combines the propeller circulation theory and the pump lifting line method.It obtains the optimum radial circulation distribution of the propeller by using the lifting line theory and variational calculus method.It also designs the sec-tion of propeller by the pump lifting design method, uses the surface panel method to forecast the ducted propeller performance and its velocity flow, and obtains the ducted propeller with convergent performance using the iterative method.A ducted propeller was designed using the proposed method.The computational fluid dynamics ( CFD) method was also applied to further verify the hydrodynamic performance.The results showed that the ducted propel-ler designed in this paper can meet the design requirement.The comparison with other methods showed that the pro-posed method for ducted propellers has a significantly improved thruster performance and cavitations'performance.