  We study the radiatively driven fluid jets around a non-rotating black hole.
The radiation arising from the inner compact corona and outer sub-Keplerian
part of the disc accelerates the jets. We obtain the steady state,
semi-analytical, radiatively driven outflow solutions. The thermodynamics of
the outflow is described by a variable adiabatic index equation of state. We
develop a TVD routine to investigate the time dependent behaviour of the
radiatively driven bipolar outflow. We inject with flow variables from the
steady state outflow solutions in the TVD code and allow the code to settle
into steady state and match the numerical results with the steady state
solution. The radiation arising out of the accretion disc can provide a wide
range of jet solutions, depending upon parameters like the intensity of disc,
location of the inner corona etc. We induce the time dependence of the
radiation field by inducing oscillation of the inner corona of the accretion
disc. The radiation field then makes the bipolar outflow time dependent. We
show that a non-steady radiation field arising out of disc oscillations can
generate the internal shocks closer to the jet base. Depending on the disc
geometry, there might be transient shocks in the jet and there might be
multiple non-stationary shocks in the jet, which are of much interest in jet
physics.
