Investigation of nonlinear eddy-viscosity turbulence models in shock/boundary-layer interaction

G. Barakos, D. Drikakis

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Validation of nonlinear two- and three-equation, eddy-viscosity turbulence models (NLEVM) in transonic flows featuring shock/boundary-layer interaction and separation is presented. The accuracy of the models is assessed against experimental results for two transonic flows over bump geometries. Moreover, the accuracy and efficiency of NLEVMs is also assessed in contrast to numerical predictions obtained by a variety of other models employed in this study. These include two linear eddy-viscosity k-ε models, the k-ω shear-stress transport model, and a nonlinear version of the k-ω model. Discretization of the mean flow and turbulence transport equations is obtained by a characteristics-based scheme (Riemann solver) in conjunction with an implicit unfactored method. The study shows that NLEVMs improve the numerical predictions in shock/boundary-layer interaction, compared to the linear models, but they require longer computing times.

Original languageEnglish
Pages (from-to)461-469
Number of pages9
JournalAIAA Journal
Issue number3
Publication statusPublished - Mar 2000
Externally publishedYes


Dive into the research topics of 'Investigation of nonlinear eddy-viscosity turbulence models in shock/boundary-layer interaction'. Together they form a unique fingerprint.

Cite this