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船舶风筝助航性能CFD模拟研究

发表时间:2015-08-15  浏览量:1416  下载量:572
全部作者: 赵彬彬,刘强
作者单位: 哈尔滨工程大学船舶工程学院;中国舰船研究设计中心
摘 要: 利用开源计算流体动力学(computational fluid dynamics, CFD)软件包OpenFOAM,并采用Spalart-Allmaras湍流模型对助航风筝的力学性能进行研究,给出了不同形状、宽长比及拱度的风筝在不同攻角下的升、阻力系数。为提高数值模拟计算效率,采用区域分解的并行计算方法以及势流计算与黏流计算相结合的计算策略,并且对计算方法进行了验证。然后,计算了风筝的助航功率,给出了基于船舶阻力及推进效率观点的不同风级下、不同海拔高度处助航风筝对全船节能率的估算公式。
关 键 词: 流体力学;助航风筝;高雷诺数;Spalart-Allmaras;助航功率;OpenFOAM
Title: CFD simulation on the towing kite assisted navigation ship
Author: ZHAO Binbin, LIU Qiang
Organization: College of Shipbuilding Engineering, Harbin Engineering University; Development and Design Center of China Ship
Abstract: Mechanical properties of the towing kite were studied using the open source computational fluid dynamics (CFD) package OpenFOAM and Spalart-Allmaras turbulence model. We presented lift and drag coefficients of towing kites of different shapes, different ratios of width to length and different cambers under different angles of attack. In order to improve the computational efficiency of numerical simulation, we adopted a domain decomposition parallel computing method and a computing strategy combined calculation of potential flow and viscous flow. These calculation methods were also validated. Then, we calculated the assisted navigation power of the towing kite, an estimation formula of energy-saving rate to the whole ship of towing kite under different Beaufort scales and different altitudes based on ship resistance and propulsion efficiency point of view was also presented.
Key words: fluid mechanics; assisted navigation towing kite; high Reynolds number; Spalart-Allmaras; assisted navigation power; OpenFOAM
发表期数: 2015年8月第15期
引用格式: 赵彬彬,刘强. 船舶风筝助航性能CFD模拟研究[J]. 中国科技论文在线精品论文,2015,8(15):1640-1648.
 
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