Abstract
Transition modelling represents a key ingredient for improving the performances of modern turbomachinery, affecting losses and the heat-transfer phenomenon. Different methods have been proposed in the finite volume context to predict the laminar-turbulent transition, but, according to the literature, not yet for high-order methods. In this paper the transition model proposed by Kožulović and Lapworth [1] was considered, which is integral, non-local and based upon experimental correlations, takes into account all the relevant modes of transition, and is well suited for turbomachinery applications. The model was implemented into a parallel high-order accurate Discontinuous Galerkin code, named MIGALE, which allows to solve the Reynolds averaged Navier–Stokes (RANS) equations coupled with the k-ω˜ (ω˜=log(ω)) turbulence model. The objective of this work is to show the capability of high-order DG methods in accurately computing complex transitional flows on coarse and low quality grids. The transitional flow around a flat plate (T3A and T3B configurations) and through the T106A turbine cascade has been computed up to fifth order and compared with available numerical and experimental data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
