Ricerc@Sapienza

Present works aims to develop the lattice Boltzmann method ability to simulate the periodic
supposed problems. Hence, a two-dimensional rectangular enclosure is considered so that its top
cold lid oscillates horizontally with time. The stationary sidewalls are kept insulated. It would be
necessary to present an appropriate boundary condition model of LBM for the oscillating lid, based
on the hydrodynamic and thermal distribution functions. The influences of various lid oscillation

In this paper a new numerical model for the simulation of the wave breaking is proposed. In order to represent the complex geometry of coastal regions, the three-dimensional equations of motion are expressed in integral contravariant form and are solved on a curvilinear boundary conforming grid. A time-dependent transformation of the vertical coordinate that is a function of the oscillation of the turbulent wave boundary layer is proposed. New boundary condition bottom for the equations of motion expressed in contravariant form are proposed.

In this paper we propose a new numerical model for the simulation of the wave breaking. The three-dimensional equations of motion are expressed in integral contravariant form and are solved on a curvilinear boundary conforming grid that is able to represent the complex geometry of coastal regions. A time-dependent transformation of the vertical coordinate that is a function of the oscillation of the turbulent wave boundary layer is proposed. A new numerical scheme for the simulation of the resulting equations is proposed.