Convergence and robustness characteristics comparison between clear algorithm and simple series algorithms

Comparisons of the convergence and robustness characteristics between CLEAR algorithm and SIMPLE, SIMPLEC, SIMPLER algorithms through six typical flow and heat transfer problems are conducted. At the conditions of the same numerical treatments of all other aspects, the CPU time and the region of the time step multiple for obtaining a converged solution are compared. The results of the comparison show that SIMPLEC is the better algorithm in opened system while CLEAR is better for closed system.