Adjoint-based computation of nonlocal eddy viscosity in turbulent channel flow
Reynolds-averaged Navier---Stokes (RANS) closure operators are generally nonlocal and anisotropic, for example in wall-bounded turbulence. We introduce a computationally efficient approach to obtain these operators, using an adjoint formulation. We then quantify the streamwise and wall-normal nonlocal eddy viscosity in turbulent channel flow, which can be used to guide closure modeling.
Authors
- Tamer A. Zaki (ORCID: https://orcid.org/0000-0002-1979-7748)
- Spencer H. Bryngelson (ORCID: https://orcid.org/0000-0003-1750-7265)
- Ali Mani (ORCID: https://orcid.org/0000-0001-7497-9328)
- Jessie Liu (ORCID: https://orcid.org/0009-0006-3798-2839)
- Florian Schäfer
Institutions
- Georgia Institute of Technology (US)
- Johns Hopkins University (US)
- Stanford University (US)
Publication Details
- Journal
- Physical Review Fluids
- Published
- 2024-09-20
- DOI
- https://doi.org/10.1103/physrevfluids.9.094606
- Citations
- 1
- Primary Topic
- Fluid Dynamics and Turbulent Flows
- Type
- article
- Field-Weighted Citation Impact
- 0.37
Funders
- Office of Naval Research
- Lawrence Livermore National Laboratory