Physical Understanding and Predictive Modeling of High Reynolds Number Non-Equilibrium Turbulent Boundary Layers
Abstract
Much of the re-search on a turbulent boundary layer (TBL) have focused on equilibrium turbulence found in idealized zero pressure gradient flows over flat plates. However, the vast knowledge of equilibrium turbulence gained over the last 50 years has had limited impact on our ability to predict practical flows of interest. The reason is that TB Ls in realistic flows are affected strongly by non-equilibrium effects controlled by flow-dependent boundary conditions. Additionally, regarding prediction of practical flows, wall-modeled large-eddy simulation (WMLES) is now perceived as an alternative to costly wall-resolved LES. However, its performance in complex flows involving the three-dimensional TBL (3-D TBL) has not been assessed thoroughly to increase the technology-readiness level of the emerging WMLES methodology.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 12, 2021
- Accession Number
- AD1224135
Entities
People
- Parviz Moin
Organizations
- Stanford University