| 球尾渔船表面流场的数值计算 |
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| 引用本文： | 余灵,李干洛.球尾渔船表面流场的数值计算[J].华南理工大学学报(自然科学版),1995,23(10):155-163. |
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| 作者姓名： | 余灵 李干洛 |
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| 作者单位： | 华南理工大学船舶与海洋工程系 |
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| 摘 要： | 本文以理想流体的势流理论为基础，采用以Ｒａｎｋｉｎｅ源势函数的边界元法。引入微平面三角形来逼近船体表面，并求其几何要素，在三角形面元上布置强度为线性分布的源汇，给出计算实船表面流场各物理量的数值计算方法。经用Ｗｉｇｌｅｙ数学船型验证，其合理可靠。
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| 关 键 词： | 边界元法 船舶 流场 数值计算 球尾渔船 |
NUMERICAL CALCULATION OF FLOW FIELDS OVER SHIP HULLS OF BULBOUS STERN FISHING BOATS |
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| Yu Ling,Li Ganluo,Yang Shaogang.NUMERICAL CALCULATION OF FLOW FIELDS OVER SHIP HULLS OF BULBOUS STERN FISHING BOATS[J].Journal of South China University of Technology(Natural Science Edition),1995,23(10):155-163. |
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| Authors: | Yu Ling Li Ganluo Yang Shaogang |
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| Abstract: | Based on the potential flow theory of ideal fluid, a boundary element method using Rankine source potential function as basis function is adopted in this paper.Triangular patches are applied to approach ship hulls.A numerical method for calculating physics parameters of flow fields over ship hulls is presented by distributing sources with linearly varying strength over these patches.The calculation results of Wigley mathematical ship model have been illustrated to be realiable and reasonable.Two forms of bulbous stern fishing boat, that is, flat keel and slant keel fishing boat,have been calculated,the results show that flow distribution of the latter looks evener. |
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| Keywords: | s:boundary element methods ships flow fields sources-sink flow |
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