Hydrodynamic forces and moments due to interaction of linear water waves with truncated partial-porous cylinders in finite depth

2020 ◽  
Vol 94 ◽  
pp. 102898 ◽  
Author(s):  
Abhijit Sarkar ◽  
Swaroop Nandan Bora
Keyword(s):  
Water Waves ◽  
Finite Depth ◽  
Hydrodynamic Forces ◽  
Linear Water Waves ◽  
Porous Cylinders

Hydrodynamic forces on a submerged cylinder advancing in water waves of finite depth

1991 ◽  
Vol 224 ◽  
pp. 645-659 ◽  
Author(s):  
G. X. Wu
Keyword(s):  
Water Waves ◽  
Outer Region ◽  
Finite Element Approximation ◽  
Finite Depth ◽  
Horizontal Cylinder ◽  
Hydrodynamic Forces ◽  
Boundary Integral ◽  
Circular Cylinders ◽  
Element Approximation ◽  
Field Equations

The hydrodynamic problem of a submerged horizontal cylinder advancing in regular water waves of finite depth at constant forward speed is analysed by the linearized velocity potential theory. The Green function is first derived. Far-field equations for calculating damping coefficients and exciting forces are obtained. The numerical method used combines a finite-element approximation of the potential in a region surrounding the cylinder with a boundary-integral-equation representation of the outer region. Numerical results for the hydrodynamic forces on submerged circular cylinders and elliptical cylinders are provided.

scholarly journals Modified Kawahara equation within a fractional derivative with non-singular kernel

2018 ◽  
Vol 22 (2) ◽  
pp. 789-796 ◽  
Author(s):  
Devendra Kumar ◽  
Jagdev Singh ◽  
Dumitru Baleanu
Keyword(s):  
Fractional Derivative ◽  
Numerical Solution ◽  
Water Waves ◽  
Iterative Scheme ◽  
Singular Kernel ◽  
Kawahara Equation ◽  
Long Wavelength ◽  
Exponential Kernel ◽  
The Stability ◽  
Linear Water Waves

The article addresses a time-fractional modified Kawahara equation through a fractional derivative with exponential kernel. The Kawahara equation describes the generation of non-linear water-waves in the long-wavelength regime. The numerical solution of the fractional model of modified version of Kawahara equation is derived with the help of iterative scheme and the stability of applied technique is established. In order to demonstrate the usability and effectiveness of the new fractional derivative to describe water-waves in the long-wavelength regime, numerical results are presented graphically.

Oblique wave-free potentials for water waves in constant finite depth

2015 ◽  
Vol 14 (2) ◽  
pp. 126-137
Author(s):  
Rajdeep Maiti ◽  
Uma Basu ◽  
B. N. Mandal
Keyword(s):  
Water Waves ◽  
Finite Depth ◽  
Oblique Wave

Reflexion of water waves by a permeable barrier

1979 ◽  
Vol 95 (1) ◽  
pp. 141-157 ◽  
Author(s):  
C. Macaskill
Keyword(s):  
Water Waves ◽  
Water Wave ◽  
Finite Depth ◽  
Infinite Depth ◽  
Permeable Barrier ◽  
Impermeable Barrier ◽  
Linearized Problem ◽  
Special Case ◽  
Thin Barrier ◽  
Standard Techniques

The linearized problem of water-wave reflexion by a thin barrier of arbitrary permeability is considered with the restriction that the flow be two-dimensional. The formulation includes the special case of transmission through one or more gaps in an otherwise impermeable barrier. The general problem is reduced to a set of integral equations using standard techniques. These equations are then solved using a special decomposition of the finite depth source potential which allows accurate solutions to be obtained economically. A representative range of solutions is obtained numerically for both finite and infinite depth problems.

Non-linear water waves on shearing flows

1994 ◽  
Vol 10 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Chen Yaosong ◽  
Ling Guocan ◽  
Jiang Tao
Keyword(s):  
Water Waves ◽  
Non Linear ◽  
Linear Water Waves
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