摘要
针对狭窄、浅水航道船舶兴波问题,选择内河巡逻艇,基于CFD技术,应用重叠网格、两相流、自由表面、六自由度等物理模型和Realizable k-ε湍流模型,模拟分析了船行波波形耦合、反射生成的尾浪以及与岸边相互作用的拍岸现象,并对4.2m某巡逻艇在水深0.95m距离航道2m条件下航行时的升沉、纵倾等进行监测。研究表明,波形耦合、反射以及拍岸现象明显,浅水效应、升沉响应、纵摇响应逼真;兴波拍岸位置x/Lpp=1.392与x/Lpp=1.6130处拍岸波高为0.02373m与0.037065m。
In this paper, several physical models （Overset-mesh, Two-phase Flow, VOF and 6-dof） and turbulence model （Realizable K-Epsilon） were used to simulate the stern wave （due to coupling and reflection of ship wave） and surf wave （owing to interaction of ship wave and bank） of a 4.2 meters＇inland waterway patrol craft in a 0.95 meter depth and 2 meter width channel based on CFD technology. The pitching, heaving motions of the patrol craft in sailing condition were also monitored during the simulation. Results show that the coupling and reflection of ship wave pattern and surf wave are simulated very verisimilarly, and the pitching, heaving motions as well as shallow water effect of the patrol craft have also been clearly shown. Results also reveal that the position of surf wave zone are respectively x/Lpp= 1.392 and X/Lpp=1. 6130, which are in correspondence with wave height at position 0. 023 73 meter and 0. 03 7065 meter.
出处
《船舶工程》
北大核心
2014年第4期88-91,共4页
Ship Engineering
基金
福建省高等学校新世纪优秀人才计划支持计划(Z80136)
福建省教育厅科技项目(JA12185)
福建省科技重点项目(2012H0032)
关键词
狭窄、浅水航道
船行波
重叠网格
数值模拟
narrow and shallow channel
ship waves
overset mesh
numerical analysis
