I am trying to figure out what the "take previous results" option in 'Flow Simulation' does. Since I had altered the properties of the porous media and my outlet boundary conditions, I was not able to continue the calculation. But, I was able to check the "take previous results" option and I was hoping that it will save me a lot of time during calculation. However, I was not able to see any difference. The entire meshing was done from scratch and when I looked at the different values, they seemed to have been intialized from the beginning. So, now I am confused as to what this option does. Thanks a lot.