A nebula in your computer: Simulating the physics and chemistry of an H II region

Abstract

In this contribution we discuss about numerical modeling of nebulae. In particular we emphasize on the dynamical evolution of an H II region and on the chemical structure of a Photodissociation region. We do this by using the Smoothed Particles Hydrodynamics code SEREN and the recently developed astrochemistry code 3D-PDR. We show an example application by simulating a cometary globule using these two codes.