期刊文献+

雷诺相似船模预报实船推进因子的数值方法 被引量:11

Accurately predicting the propulsion factors of a ship using a Reynolds-similarity ship model
下载PDF
导出
摘要 为了克服船模预报实船推进因子中的尺度效应,通过引入虚流体运动粘性系数,在数值计算中实现了缩尺船模与实船的雷诺数相似.根据船体兴波作用对推进因子影响甚小的基本分析结论,运用RANS方程和RNGk-ε湍流模型,对一条缩尺比为20的雷诺相似船模进行了不考虑船体兴波影响的自航数值试验计算,通过对数值相似自航船模自航点和推进因子的数值计算,预报了实船的实效伴流分数和推力减额分数,所得结果与试验吻合较好,表明了该文的实船推进因子预报方法可以消除船模与实船之间固有的尺度效应,具有较强的工程实用性. In order to eliminate the effects of scale on data obtained from a ship's model when compared to the results from the actual ship, the Reynolds similarity criterion was achieved between a scale-reduced ship model and an actual ship in numerical calculations by introduction of virtual fluid kinematic viscosity factor. A simulated selfpropulsion experiment on a 1:20 scale Reynolds-similarity ship model was carried out, in which the wave making of the ship model had little influence on the propulsion factors so that wave resistance could be ignored in the calculation. The self-propulsion point and propulsion factors of the Reynolds-similarity ship model were numerically calculated; therefore the effective wake factor and thrust deduction factor of actual ship were numerically predicted and the results were in good agreement with data from the actual ship. It is showed that this method for predicting the propulsion factors of a ship is able to eliminate the scale effect between the ship and its model, and is useful for engineering.
出处 《哈尔滨工程大学学报》 EI CAS CSCD 北大核心 2008年第7期658-662,共5页 Journal of Harbin Engineering University
基金 上海交通大学船舶与海洋国家重点实验室基金资助项目(2007-0708)
关键词 雷诺相似 虚流体运动粘性系数 船模自航数值试验 推进因子 Reynolds similarity virtual fluid kinematic viscosity factor numerical model self-propulsion experiment propulsion factors
  • 相关文献

参考文献5

二级参考文献51

  • 1黄德斌,邓先和,王杨君.沟槽面管道湍流减阻的数值模拟研究[J].水动力学研究与进展(A辑),2005,20(1):101-105. 被引量:15
  • 2楼文娟,孙炳楠,傅国宏,洪滔,唐锦春.复杂体形高层建筑表面风压分布的特征[J].建筑结构学报,1995,16(6):38-44. 被引量:41
  • 3苏铭德,唐革风.高层建筑风载的数值模拟[J].空气动力学学报,1996,14(4):436-442. 被引量:9
  • 4章梓雄 董曾南.黏性流体力学[M].北京:清华大学出版社,1998..
  • 5刘尚培.风对结构的作用[M].上海:同济大学出版社,1992..
  • 6刘玉东 汤广发.高层建筑群风压及风环境的数值模拟[A]..第九届全国结构风效应学术会议论文集[C].,1999.137—142.
  • 7[1]Miyata H, Zhu M, Watanabe O. Numerical study on a viscous flow with free - surface waves about a ship in steady straight course by a Finite - Volume Method [ J ]. J. of Ship Research, 1992, 36 (4): 332 - 345.
  • 8[2]Hino T. A study of grid dependence in Navier - Stokes solutions for free surface flows around a ship hull[J]. Journal of the society of Naval Architects of Japan, 1995, 176:11 - 18.
  • 9[3]Shiotani S, Kodama Y. Numerical computation of viscous flows with free surface around a series 60 model[ J ]. Journal of the Society of Naval Architects of Japan, 1997, 180:39 - 50.
  • 10[4]Stem Toda F, Tanaka I, Patel V C. Mean - flow measurements in the boundary layer and wake of a series 60 CB = 0.6 model ship with and without propeller [J ]. J. Ship Research, 1990,34 (4): 225 - 252.

共引文献70

同被引文献98

引证文献11

二级引证文献61

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部