摘要
采用求解RANS方程的方法,运用计算流体力学(CFD)软件Fluent,对荷兰船模试验池推荐的No.19A+Ka4-7010导管螺旋桨模型(P/D=1.0)的敞水粘性流场进行CFD数值模拟,并分析结果得到该导管螺旋桨模型敞水状态下的水动力性能曲线。分别计算3种不同叶梢间隙(Δ=1mm,2mm,3mm)下导管螺旋桨的水动力性能,研究叶梢间隙对导管螺旋桨水动力性能的影响。将Δ=1mm工况下的计算结果与上海船舶运输科学研究所导管螺旋桨常规推进敞水试验的结果进行比较,验证该计算策略的正确性。计算结果表明:导管螺旋桨的推力、扭矩以及推进效率均随叶梢间隙的减小而增大。
The viscous flow field of the model of No.19A＋Ka4-7010 ducted propeller from MARIN is calculated and analyzed with RANS equations by means of CFD software Fluent,and the hydrodynamic performance curve is obtained.The hydrodynamic performance of the ducted propeller is calculated forΔ=1mm;2mm and 3mm respectively,where represents the clearances between the blade tip and the inner wall of the duct,to investigate the effect of clearance adjustment.A prototype of the propeller with the clearance of 1mm is made and tested to check the calculation.The investigation indicates that all the thrust,torque and the propulsion efficiency of the ducted propeller increase as the clearance decreases.
出处
《上海船舶运输科学研究所学报》
2015年第4期8-13,共6页
Journal of Shanghai Ship and Shipping Research Institute
关键词
导管螺旋桨
叶梢间隙
计算流体力学
水动力性能
ducted propeller
blade-duct clearance
CFD（Computational Fluid Dynamics）
hydrodynamic performance
