Transition Effect on the Vertical Flow Past the VFE-2 Delta Wing with Rounded Leading Edge
The influence of transition on the flow pattern and pressure distribution on VFE-2 was investigated by implementing the three-equation k-ω-γ transition model into DDES method (DDES-Tr). The DDES based on full turbulence (DDES-FT) is involved for comparison. For the attached flow, the vortex structure and flow pattern are largely affected by the transition exists on the leading-edge. Both the primary vortex and inboard vortex are captured by DDES-Tr, while the inboard vortex disappears in the DDES-FT, indicating the importance of transition in simulating the attached flow on VFE-2.
The authors would like to thank the National Natural Science Foundation of China (Grant No. 11772174), and express our gratitude to the Tsinghua National Laboratory for Information Science and Technology for computational resources.
- 2.Wang, G., Yang, M., Xiao, Z., Fu, S.: Improved k-ω-γ transition model by introducing the local effects of nose bluntness for hypersonic heat transfer. Int. J. Heat Mass Transfer. 119, 185–198 (2018)Google Scholar