This project is devoted to the study of exoplanet atmosphere dynamics based on numerical simulations of global circulation flow characterising the surface of exoplanets, and in particular of strongly irradiated transiting planets. The development of atmospheric circulation models is a crucial step required to understand exoplanet properties. Atmospheric dynamics, indeed, affect heat redistribution over the surface of the planet and its spectroscopic signatures (i.e transmission and emission spectra as is now observed on several known extrasolar planets). Atmospheric circulation is also expected to affect the planet's internal structure and evolutionary properties. The goal is to adapt models based on the so-called General Circulation Model (GCM) approach, which is used for climate studies on Earth and on solar system planets, to the conditions appropriate for the description of exoplanet atmospheres. For this project, we are using a sophisticated GCM code which has been developed at the Met Office of Exeter.