Current best - practices for mesh generation in a structured overset framework are evaluated to determine their effects on the accuracy and convergence of the flow solution on a two - dimensional sectional cut of the High - Lift Common Research Model ( HLCRM ) wing . Mesh parameters are varied independently and correlated with force and moment coefficients from the flow solutions to identify the trends and sensitivities of the parameter variations , and the characteristics of a best practice mesh . Grid convergence and mesh adaption studies are also performed to determine the minimum mesh quality needed in order for solution - based adaption to reach an accurate flow solution .