Rotational Solitary Wave Interactions over an Obstacle
AUTOR(ES)
FLAMARION, M. V.
FONTE
Trends in Computational and Applied Mathematics
DATA DE PUBLICAÇÃO
2022
RESUMO
ABSTRACT In this work, we investigate the propagation of rotational solitary waves over a submerged obstacle in a vertically sheared shallow water channel with constant vorticity. In the weakly nonlinear, weakly dispersive regime the problem is formulated in the forced Korteweg-de Vries equation framework. The initial value problem for this equation is solved numerically using a Fourier pseudospectral method with an integrating factor. Solitary waves are taken as initial data and their interactions with an obstacle are analysed. We identify three types of regimes according to the intensity of the vorticity. A rotational solitary wave can bounce back and forth over the obstacle remaining trapped for large times, it can pass over the obstacle without reversing its direction or the wave can be blocked, i.e., it bounces back and forth above the obstacle until reaching a steady state. Such behaviour resembles the classical damped spring-mass system.
Documentos Relacionados
- Simulation of irregular waves over submerged obstacle on a NURBS potential numerical wave tank
- The solitary wave of asexual evolution
- Using an observer rating method to assess the effects of rotational stocking method on beef cattle temperament over time
- Coherence–incoherence transition in nonlinear wave interactions
- Determination of helix-helix interactions in membranes by rotational resonance NMR.