کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1726675 | 1520757 | 2011 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An analytic investigation of oscillations within a harbor of constant slope An analytic investigation of oscillations within a harbor of constant slope](/preview/png/1726675.png)
Longitudinal and transverse oscillations within a harbor of constant slope are analyzed. Based on the linear shallow water approximation, longitudinal oscillations are described with Bessel equations. Ignoring friction, oscillations are forced using the period of the incident perpendicular wave field by the method of matched asymptotics. The analytic results show that the varying depth shifts the resonant wave numbers to lower values than those for the same geometric harbor with constant depth. Furthermore, we extend the shallow water equations to a linear, weakly dispersive, Boussinesq-type equation by modifying the offshore velocity component, and then use it to investigate possible existing transverse oscillations in the harbor of constant slope. These oscillations are types of standing edge waves. Their character is quite sensitive to the boundary condition at the backwall of the harbor.
Journal: Ocean Engineering - Volume 38, Issues 2–3, February 2011, Pages 479–486