the data that I have is the average air velocity data from the blower as forced convection.

How do I prevent the back flow temperature from being used so that I can find out the temperature at the outlet every certain time (transient) using the pressure-outlet? because I entered the velocity-inlet and pressure-outlet with a back flow temperature of 300K and the result is a temperature at the outlet of 300K (meaning the back flow temperature is active).

btw does this also apply to the boundary condition outflow type? because I also tried using velocity-inlet and outflow and the result is that the temperature at the outlet follows the temperature that I input in the velocity-inlet