Acknowledgement
OpenCFD would like to acknowledge and thank Prof. Rémi Manceau for providing the governing equations for setTurbulenceFields, elaborate suggestions and critical recommendations. Highly appreciated.
Aim
Implement and evaluate the two-step automatic initialization procedure for RANS computations introduced by Manceau (n.d.).
Methodology
- Plane channel flow at ReTau=180, 395, 590 (Moser et al., 1991) and =4179 (Lozano-Duran & Jimenez, 2014)
- NASA Turbulence Modelling Resource on various physics:
- 2DCC: 2D Convex curvature boundary layer
- 2DML: 2D Mixing layer
- 2DB: 2D Bump-in-channel
- 2DZP: 2D Zero pressure gradient flat plate
- 2DANW: 2D Airfoil near-wake
Results
2DML: 2D Mixing layer
Plane channel flow, ReTau=4179
Meta-data
EP#1805
-
linux64ClangDPInt32Opt(clang11) -
linux64GccDPInt32Opt -
linux64GccSPDPInt64Debug -
Alltest: No new error
Discussion
- The initialisation method may help to improve convergence in the first
O(10)time steps, and fidelity of results. - The initialisation method does not take input turbulence intensity and/or input viscosity ratios (mut/mu) into account.