Comparing Unstructured Adaptive Mesh Solutions for the High Lift Common Research Airfoil

Some progress on CFD high lift prediction using metric-based anisotropic mesh adaptation

“…We will call it CRM-HL airfoil. It The case is considered in SI units with a reference length of 1 m. Several solution-adaptive strategies were compared in, 19 most of them considering a finite element flow solver. The only finite volume flow solver was Wolf.…”

“…CRM-HL Airfoil 19 regions on the slat wing and flap. It also resolves the wakes where they interact with downstream geometry, but forgo refinement far downstream of the airfoil contrary to feature-based mesh adaptation.…”

“…This is pointed out by the mean anisotropic ratio that increases from 34.5 to 42.7 and also the percentage of element with an anisotropic ratio between 10 and 1000 which increases from 46.4% to 49.9%. Now, we compare the results obtained with Wolf in 19 and the new results with the improved Newton's method. First, Figure 9 emphasizes that convergence to machine zero is obtained at each run thanks to the improved Newton's method.…”