摘要
针对喷水推进器进水流道方案,利用CFD软件Fluent对不同流道倾角、唇角半径及形状、斜坡半径下的喷水推进器性能进行数值模拟。通过分析进水流道效率、出流口加权平均角、不均匀系数、唇部驻点位置等,对进水流道的流动性能进行对比分析。结果表明,当进水流道倾斜角取32°、唇角形状取圆弧、唇角半径取3 mm、斜坡半径取1 050 mm、其余参数与原始进水流道的整体参数相同时,进水流道的效率达到94.2%,优于原始进水流道的效率80.4%。
The inlet duct programs of waterjet propulsion were designed,and CFD software Fluent was used for numerical simulation of waterjet propulsion performance under different duct inclinations,lip radii and shapes,ramp radii. By analyzing duct efficiency,weighting average angle,nonuniformity coefficient and lip point position,the flow properties of inlet duct were compared and analyzed. The results show that the parameters of32° duct inclination,circular lip,3 mm lip radius and 1 050 mm ramp radius make inlet duct efficiency to 94. 2%with other parameter unaltered,and the efficiency is superior to original value of 80. 4%.
出处
《舰船科学技术》
北大核心
2015年第9期61-66,共6页
Ship Science and Technology
