An unconditionally stable difference scheme is developed and fully analyzed for two-
dimensional convection-diffusion-reaction equations with nonlinear coefficients and external …

The advection-diffusion equation with time dependent velocity and anisotropic time
dependent diffusion tensor is examined in regard to its non-classical transport features and …

An unconditionally stable finite difference scheme is developed and fully analyzed for two-
dimensional convection-diffusion-reaction equations with nonlinear coefficients and external …

In this paper we present an analytical solution of the advection-diffusion equation which
describes the dispersion of pollutants in the atmosphere considering time dependence in …

In this note we consider generalised diffusion equations in which the diffusivity coefficient is
not necessarily constant in time, but instead it solves a nonlinear fractional differential …

En estos últimos años a nivel del mundo y en un caso particular la ciudad de Tacna, la
población migra del campo a la ciudad; conllevando con ello al incremento de más …

Esta tese tem o objetivo de apresentar um modelo matemático, para simular a dispersão de
poluentes na atmosfera, que considera a variação temporal do campo de vento e dos …

Air quality models are important tools in assessing the concentration of pollutants in the
atmosphere and are used by regulatory agencies to estimate environmental impacts, risk …

The atmospheric dispersion model has been well developed and applied in pollution
emergency and prediction. Based on the sophisticated air diffusion model, this paper …