I'm performing an iterative calculation that runs through 100002 iterations. Imagine a nozzle with area1 for the inlet and area2 for the exit. The main goal here is to perform a differential analysis of the nozzle for each iteration to arrive at some final values. The variables that require iterations are area (A), circumference (C), velocity (U), temperature (T), density (rho), pressure (P), Mach number (M), total temperature (Tt), and total pressure (Pt). So I have 9 variables that are iterated 100002 times. The computation time is about 30 minutes. This is not acceptable as I need to run 6 more cases.
Question: Is there a way to save the ith and the (i-1) term, where the ith term is the term I am calculating at the present iteration and the (i-1) is the previous term?