Published online by Cambridge University Press: 12 April 2016
A review of the dynamics of the dissipative gas component in barred galaxies is given. The formation of large scale galactic shocks is described, and its implications for star formation and global mass inflow are discussed. Different approaches for modeling the gas will be contrasted, and it will be shown they all produce the same basic morphological picture. However, they do differ in their estimates of mass inflow rates. Some possible directions for future research are indicated.