Turbulent Transition with LES with the Wall-Adapting Local Eddy-Viscosity Model
ORAL
Abstract
Large-eddy simulation (LES) is investigated for turbulent transition in a wall-bounded boundary layer. Behaviors of subgrid-scale models in the transition have not been fully understood yet. The wall-adapting local eddy-viscosity (WALE) model is of the interest in this study. The WALE model formulation is investigated in connection with flow structures in laminar, transitional and turbulent boundary layers. The boundary layer stability theory is used for the LES inlet, providing dominant disturbances in the pre-transitional boundary layer.
*This work is carried out as part of Space Core Technology Development Program and supported by the National Research Foundation of Korea(NRF) grant funded by the Ministry of Science and ICT(MSIT) of Korea government (NRF-2017M1A3A3A02016810), and is supported by the National Institute of Supercomputing and Network/Korea Institute of Science and Technology Information with supercomputing resources including technical support (Project No. KSC-2017-C3-0048).
–
Presenters
-
Minwoo Kim
- Gwangju Institute of Science and Technology