weak then the jet should be of lower power! We would like to find the condition of the shocked disc that produces weak or strong jets. Disc instability due to viscous transport has been shown before and has been identified with QPOs [@lmc98; @lcscbz08; @lrc11], however, we would like to show how this instability might affect the shock induced bipolar outflows. Moreover, it has been shown theoretically that the energy and angular momentum for which steady shock exists in inviscid flow, will become unstable for viscous flow [@cd04; @kc13]. We would like to see how the mass outflow rate depend on unstable shock, or in other words, if there is any connection between QPOs and mass outflow rate. In this paper, we would like to address these issues.

In the next section, we present the governing equations and model assumptions. In section 3, we present the results, and in the last section we draw concluding remarks.

Governing equations
===================

We consider a non-steady accretion flow around a non-rotating black hole. The space time geometry around a Schwarzschild black hole is modeled using the pseudo-Newtonian potential introduced by @pw80.

In this work, we use geometric units as $2G=M_B= c = 1$, 