【作者】 李杰； 鲁传敬； 傅惠萍；

【Author】 LI Jie LU Chuan-jing FU Huiping (Department of Engineering Mechanics,Shanghai Jiaotong University,Shanghai 200230)

【机构】 上海交通大学工程力学系；

【摘要】 采用有限体积法,对细长回转体出水过程的复杂非定常流场进行了数值模拟,计算过程中考虑黏性、重力影响,使用 VOF 方法捕捉水气界面．对出水过程中细长回转体的受力变化规律进行了讨论,同时对头部出水时的液面抬高及尾部拖水现象进行分析．对于细长体而言,头部出水的液面抬高水量只与回转体头部形状相关,与尾端形状无关．更多还原

【Abstract】 Finite volume method is applied to simulate vertical water exit of axissymmetric slender body,viscosity and gravity have been taken into account.The flow is supposed to be axis-symmetrical.The water surface is traced by VOF method.To validate the numerical model,The results are compared with certain available experimental results.The flee surface deformation is discussed when the head of slender body is exiting water.The volume of water flushing up is analyzed also.更多还原