ERCOFTAC is proud to announce a two day course on Transition Modelling.

Speakers

Prof. Erik Dick, U. Ghent, Belgium Prof. Wolfgang Rodi, Karlsruhe Institute of Technology, Germany Prof. Rolf Radespiel,Technische Universitat Braunschweig, Germany Dr. Mark Johnson, University of Liverpool, UK Dr. Jan Wissink Brunel University, UK Dr. Florian Menter Ansys, Germany Dr. Sylvain Lardeau CD ADAPCO, UK Dr. Andreas Krumbein, DLR, Germany

Aims In the past three decades, significant progress has been made in the development of turbulence models, due to the effort of many research groups. However, in many applications, the important effect of laminar-turbulent transition has only been included in a very primitive way such as by tripping boundary layers based on empirical criteria. With the general growth of the use and importance of CFD methods and the increased wish for more accurate simulations, the need has grown for more reliable transition prediction methods. This has resulted in an intense development of transition modelling approaches in the last decade.

The aim of the course is to discuss the physical phenomena in different transition processes and the appropriate approaches for modelling them. The focus of the course is on external aerodynamic flows and internal turbomachinery flows.

In aerodynamic flows, transition is typically the result of flow instability of Tollmien-Schlichting type or cross flow type. In turbomachinery flows, the main transition mechanism is bypass transition imposed on the boundary layers by high levels of free stream turbulence.

Specifically, the course aims to provide:

- An overview of transition modelling approaches

- A discussion of transition mechanisms

- Detailed discussion of approaches, dependent on the application area

- Recommendation for appropriate and effective application of transition models