Non-linear K;";v 2 Modeling with Application to High-lift

The k v model has been investigated to quantify its predictive performance on two high lift con gurations D ow over a single element aerofoil involving closed type separation D ow over a prolate spheroid involving open type separation A code friendly modi cation has been proposed which enhances the numerical stabil ity in particular for explicit and uncoupled ow solvers As a result of introducing Reynolds number dependence into a coe cient of the equation the skin friction distribution for the by pass transitional ow over a at plate is better predicted In order to improve de ciencies arising from the Boussinesq approximation a non linear stress strain constitutive relation was adopted in which the only one free constant is calibrated on the basis of DNS data and the Reynolds stress anisotropy near the wall is fairly well represented