Scalability of OpenFOAM Density-Based Solver with Runge–Kutta Temporal Discretization Scheme

Table 1

Normalized speedup for Grid1 (ONERA M6 wing) up to 1024 ranks.

#Ranks	rhoCentralFoam	rhoCentralRK4Foam	% increment
128	1	1	0
256	1.341	1.367	1.939
512	1.594	1.814	13.802
1024	2.364	2.747	16.201