CAJ | 학술논문

尺度效应是船舶性能预报过程中不可忽略的重要因素，对于非常规推进器推进水下航行体其影响更加复杂。文章采用数值模拟方法研究不同尺度下导管螺旋桨与艇体之间的相互干扰，分析尺度效应对推进器艇后推进性能的影响。计算了三个不同尺度自航模型中推进器的艇后作用曲线以及自航点处的推进性能，研究了尺度效应的影响；对自航模型中螺旋桨尺度效应的成分进行分析，得出了螺旋桨尺度效应的主要来源。
척도효응시선박성능예보과정중불가홀략적중요인소，대우비상규추진기추진수하항행체기영향경가복잡。문장채용수치모의방법연구불동척도하도관라선장여정체지간적상호간우，분석척도효응대추진기정후추진성능적영향。계산료삼개불동척도자항모형중추진기적정후작용곡선이급자항점처적추진성능，연구료척도효응적영향；대자항모형중라선장척도효응적성분진행분석，득출료라선장척도효응적주요래원。
Scale effect issue affects all aspects of ship hydrodynamic performance at various levels. It gets even more complex when coping with new propulsors and ship types. In this paper, three different scale self-propulsion models were simulated to figure out the scale effect of hull/ducted propeller interaction. By cal-culating the powering performance of the ducted propeller in the behind condition, the self-propulsion points of the three different scale models were figured out. And, the scale effect of the self-propulsion factors and how the scale effect affects the powering performance were studied. Finally, the propeller was analyzed spe-cially to find out the components of its scale effect.