I am trying to simulate velocity field inside a domain of just ambient air (pressure is 1 atm & velocity is 10 m/s). There is a tank inside it which has a leakage. The leakage hole is leaking gas continuously and its pressure is 10 psig. For air domain, boundary condition at left and right face is inlet and outlet respectively. Other three faces are open boundary and bottom ground is No slip condition.

At first Turbulent Flow k-ε model is used to solve in a stationary solver. Then I used Turbulent Flow SST model to solve in time dependent solver. Initial values for time dependent solver are set as the result from stationary solver. Stationary solver converged very well but I am getting error in time dependent solver. The error message is: “Failed to find consistent initial values. Last time step is not converged.”

What is wrong with time dependent calculation for turbulent flow? Can anyone help me please?