Abstract

We investigate the global accretion solution around a stationary black hole using the smooth particle hydrodynamics (SPH) method. With the suitable choice of the input parameters, accretion flow undergoes shock transition that are oscillatory in nature. Such unstable solutions exhibit the modulation of the inner part of the disk, such as post-shock corona (PSC) and perhaps be responsible as the source of Quasi Periodic Oscillations (QPOs) of emergent high energy radiation commonly observed in black hole sources.