We review results from general relativistic axisymmetric magnetohydrodynamic simulations of accretion in Sgr A* .
We use general relativistic radiative transfer methods and to produce a broad band ( from millimeter to gamma-rays ) spectrum .
Using a ray tracing scheme we also model images of Sgr A* and compare the size of image to the VLBI observations at 230 GHz .
We perform a parameter survey and study radiative properties of the flow models for various black hole spins , ion to electron temperature ratios , and inclinations .
We scale our models to reconstruct the flux and the spectral slope around 230 GHz .
The combination of Monte Carlo spectral energy distribution calculations and 230 GHz image modeling constrains the parameter space of the numerical models .
Our models suggest rather high black hole spin ( a _ { * } \approx 0.9 ) , electron temperatures close to the ion temperature ( T _ { i } / T _ { e } \sim 3 ) and high inclination angles ( i \approx 90 \hbox { $ { } ^ { \circ } $ } ) .