4 papers
Nonlinear viscous gravity-capillary surface waves at arbitrary wavelengths
Arash Ghahraman, Gyula Bene
This paper presents the second-order perturbation theory of the Navier-Stokes equations for free surface flows, with the wave amplitude considered as the perturbation parameter. Gr…
Bifurcation Analysis and Propagation Conditions of Free-Surface Waves in Incompressible Viscous Fluids in Finite Depth
Arash Ghahraman, Gyula Bene
Viscous linear surface waves are studied at arbitrary wavelength, layer thickness, viscosity and surface tension. We find that in shallow enough fluids no surface waves can propaga…
Investigating viscous surface wave propagation modes and study of nonlinearities in a finite depth fluid
Arash Ghahraman, Gyula Bene
The object of this study is to investigate the effect of viscosity on propagation of free-surface waves in an incompressible viscous fluid layer of arbitrary depth. While we provid…
An analytical formulation for phi^4 field-potential dynamics
Arash Ghahraman, Kurosh Javidan
An analytical model for adding a space dependent potential to the phi^4 field is presented, by constructing a collective coordinate for solitary solution of this model. Interaction…