Development ofthe Uncertainty Sensors

As already mentioned, the uncertainties considered are mostly model-related and can be the result of the specification or weaknesses of the model itself. Reasons for uncertainties could be a lack of information of the physical background of the investigated flow problem.

Development ofthe Uncertainty Sensors

Fig. 7 Flat plate — influence of the wall distance y+ on the prediction of the friction coef­ficient Cf, normalized with Cf of the reference grid with SAE, SAO, Hellsten EARSM, RQEVM and Wilcox k-w model