航行器水面滑行喷水推进特性研究  

Water-jet Propulsion Characteristics of Vehicle Planing

作　　者：刘富强 周霖仪 孙元 闫靠 LIU Fuqiang;ZHOU Linyi;SUN Yuan;YAN Kao(The 705 Research Institute,China State Shipbuilding Corporation Limited,Xi’an 710077,China;China State Shipbuilding Corporation Limited,Shanghai 200011)

机构地区：[1]中国船舶集团有限公司第705研究所,陕西西安710077 [2]中国船舶集团有限公司,上海200011

出　　处：《水下无人系统学报》2023年第2期305-315,共11页Journal of Unmanned Undersea Systems

摘　　要：基于STAR-CCM+软件,采用剪切应力传输k-ω湍流模型、多重参考系模型和理想水泵模型构建航行器水面滑行喷水推进数值仿真模型,并进行了可行性验证。基于理想水泵模型对内流道单侧进水特性进行仿真,用理想水泵特征压差的大小来表征轴流水泵吸水能力。并对航行器在不同压差和不同浸没深度水面滑行工况进行数值仿真,研究其流场特性和流体动力特性。结果表明,理想水泵模型对轴流水泵吸水具有较好的仿真效果;对比不同特征压差航行器内流道的流体动力特性,发现随着压力值的增大,内流道阻力明显增大,内流道升力几乎不变;在不同浸没深度水面滑行数值仿真中,当进水口浸没深度大于20 mm时,内流道进水效果不再受浸没深度影响。研究结果可为航行器水面滑行喷水推进工程应用提供参考。This study employed the shear stress transport(SST)k-ωturbulence model,multiple reference frame(MRF)model,and ideal pump model to construct a numerical simulation model of water-jet propulsion for vehicle planing.The model wasimplemented in STAR-CCM+software,and its feasibility was verified.On the basis of the ideal pump model,the influentcharacteristics of the inner flow channel were simulated for one side with the characteristic pressure difference of the idealpump and water absorption capacity of the axial flow pump.The flow field and hydrodynamic characteristics of vehicleplaning with different pressure differences and immersion depths were studied using numerical simulation.The results showthat the ideal pump model can simulate the water absorption of the axial flow pump well.A comparison of the hydrodynamiccharacteristics of the inner passage of the vehicle under different pressure differences reveals that with an increase in pressure,the inner passage drag increases significantly,and the inner passage lift force remains nearly unchanged.The numericalsimulations of planing at different immersion depths reveal that for immersion depths of the inlet greater than 20 mm,theinfluent effect of the inner flow passage would no longer be impacted by immersion depth.These results provide a referencefor water-jet propulsion engineering applications of vehicle planing.

关 键 词：航行器 水面滑行 喷水推进 流体动力特性 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程] U661.1[交通运输工程—船舶及航道工程]