在粘性流体中船行波的速度场

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Velocity Field in Ship Waves on the Viscous Fluid

Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433, P R China

摘要: 从Navier-Stokes方程出发,导得了水上运动物体船行波的波高和水平速度二重积分的表达式.其次采用Lighthill两步法将上述的积分表达式化为代数表达式.与海水作为理想流体所得的结果相比,消除或减弱了原有的奇性,提高了船行波的数字资料的精度.
- 粘性流体 /
- 水上运动物体 /
- 船行波
Abstract: From the Navier-Stokers equations,the integral expressions of the free-surface elevation and the velocity field in ship waves of a moving waterborne body are obtained. Next,Lighthill's two- stage scheme is employed to change the above-mentioned integral expressions to algebraic expressions. Compared with the results obtained when the seawater is idealized to an inviscid fluid,the singularities are dispelled or weakened,and the accuracy of the digit information of ship waves is improved.
- viscous fluid /
- moving body on the water /
- ship wave

[1]	Wehausen J V,Laitone E V. Surface waves[A]. In:S Flügge Ed.Encyclopedia of Physics[C]. New York:Springer-Verlag,1960,311-778.
[2]	Chan A T,Chwang A T.Interaction of laminar far wake with a free surface[J].Phys Fluids,1996,8(2),421-429.
[3]	Tao M D,Liu M J,Ren J C.A study of velocity field in ship waves[J].J Hydrodynamics,Ser B,2001,13(4):42-47.
[4]	Liu A K,Peng Y,Chang S Y. Wavelet,analysis of satellite images for coastal watch[J].IEEE J Oceanic Engig,1997,22(1):9-17.
[5]	Miao G P,Liu Y Z,Yang Q Z,et al. On the 3-D pulsating source of Michell type with forward speed[J].J Hydrodynamics,Ser B,1995,7(2):84-95.