Description of a Website Resource for Turbulence Modeling Verification and Validation

Abstract

The activities of the Turbulence Model Benchmarking Working Group -which is a subcommittee of the American Institute of Aeronautics and Astronautics (AIAA) Fluid Dynamics Technical Committee -are described. The group's main purpose is to establish a web-based repository for Reynolds-averaged Navier-Stokes turbulence model documentation, including verification and validation cases. This turbulence modeling resource has been established based on feedback from a survey on what is needed to achieve consistency and repeatability in turbulence model implementation and usage, and to document and disseminate information on new turbulence models or improvements to existing models. The various components of the website are described in detail: description of turbulence models, turbulence model readiness rating system, verification cases, validation cases, validation databases, and turbulence manufactured solutions. An outline of future plans of the working group is also provided.

Recalibration of the Shear Stress Transport Model to Improve Calculation of Shock Separated Flows

“…Utilizing the verified grid available from Rumsey et al, 23 calculations were performed using the original SST and BSL formulations as well as SST with variations in a 1 . The pressure distribution plot in Fig.…”

“…For this case and the next two benchmark low subsonic test cases, grids and boundary conditions that are available on the turbulence modeling website described in Ref. 23 were employed. All of the grids were previously verified to yield grid independent solutions.…”

Statistical Analysis of CFD Solutions from the Fifth AIAA Drag Prediction Workshop

“…4. Do verification tests of turbulence models 38 before applying them to complex flows. There was an effort in DPW-V to do some verification tests, but most participants did not run a grid convergence for the turbulence model verification cases.…”

“…3. Use common nomenclature 38 when reporting the turbulence model. This is still not universally applied; variants in base turbulence models such as SA will give different results.…”

Statistical Analysis of CFD Solutions from the Fourth AIAA Drag Prediction Workshop

“…Report iterative convergence results 3. Use common nomenclature 33 when reporting the turbulence model 4. Do verification tests of turbulence models 33 before applying them to complex flows.…”