Assigned ID: 554 ----- Attempting Submission 1 (Fri Feb 24 18:32:01 GMT 2012) ----- Most important and useful methods of measuring masses of super-massive black holes use properties of AGN, in particular, properties of broad emission lines. Those methods assume that the regions where those lines are formed are virialized systems. We propose to study dynamics and kinematics of multi-phase flows in the vicinity of the central black hole in AGN. Our study will be based on numerical, time-dependent, fully three-dimensional hydrodynamical simulations taking into account black hole gravity, pressure due to gas and radiation, radiative heating and cooling, and gas rotation. Therefore, our simulations will follow gas that will be subject to thermal and hydrodynamical instabilities which will lead to formation and evolution of cold clouds and filaments surrounded by a hot gas. By measuring the kinematic properties of the simulated clouds, we will investigate what is required for the clouds to form a virialized system and whether the assumption of the virialized system holds for objects with low as well as high luminosities. AGN/QUASARS 12 Medium false 0.0 0.0 false false true false SUPPORTED