Validation Cases and Grids Philippe Spalart studied Mathematics and Engineering in Paris, and obtained an Aerospace Ph.D. at Stanford/NASA-Ames in 1982. NASA CR-179222 N88-12754 Unclas 0111209 A MULTIPLE-TIME-SCALE TURBULENCE MODEL BASED ON VARIABLE PARTITIONING OF TURBULENT KINETIC ENERGY SPECTRUM By S. -W. Kim Universities Space Research Association Systems Dynamics Laboratory Science and Engineering Directorate and C. … 07/20/2020 - Added SA-BCM transition model description ACSSJ The data in the following links are publicly available and are provided here as a convenience. Turbulence Model Wilcox2006-klim-m Information from Lisbon     (3)   Data from Direct Numerical Simulations (DNS) Finally, the site should serve as a forum for model developers to help ATB* Last Updated: 03/24/2021. 3D Hemisphere Cylinder (old) Publication Abstracts Canuto 1994. at High Reynolds Number, obtain accurate and up-to-date information on widely-used RANS turbulence models, and. Data from Experiments Page Curator: of Turbulence Models" (3) 12/17/2018 - Added SA-RC verification case for NACA 4412 Axisymmetric Hot Supersonic Jet One-Equation Models: 2DZPH (3) The site should also help CFD code users to understand and compare the (2) (1) VERIF/2DCJ: 2D Coflowing jet (1) thorough validation effort for flows of specific interest to users and (1) 2D NACA 0012 Airfoil NASA Transition Modeling Workshop 2017 (concluded) 11/12/2020 - Added description of SA-AFT 3-eqn turbulence+transition models Responsible NASA Official: (2) (2) Axisymmetric Hot subsonic jet (3) various sources, including experiment, DNS, and LES. The dq limiter keyword indicates that changes in the solution over an iteration are limited in order to avoid instabilities due to large transients. The talk concludes with thoughts about effective community turbulence research, especially seeking a good use of Artificial Intelligence. (3) Data from Large Eddy Simulations (LES) Responsible NASA Official: ASJ* weak This effort is guided by the Group, American Institute of Aeronautics and Astronautics. Y and CFD Prediction Error Assessment Workshop 2018 (concluded) ATB* specifically for use in workshops focused on turbulence model numerical (3) (Guidelines for submitting a new turbulence model description: results (including grid convergence studies) from one or more Verification Cases and Grids, (click on number in parentheses in this table to go to the particular validation page), *SA-neg results should be essentially K-gamma ERCOFTAC Knowledge Base Wiki (1) Alternative Validation Case Listing by Flow Physics: 3 (Number of codes included in validation are indicated by the value in parentheses) Recent Significant Site Updates Axisymmetric Transonic Bump Previous NASA methods for simulation of turbulence for aerospace vehicle flight simula- tions include the turbulence simulation technique of Fichtl (1977) and the turbulence criteria and model presented in Section 2.4 of Turner and Hill (1982). (1) (4) Related External Links to CFD Codes Notes on running the cases with CFD 2DBFS: Airfoils Explicit Algebraic Stress k-omega (1) (3) Y Y 2DML: 07/20/2020 - Added SA-BCM transition model description Speaker: Philippe Spalart, The Boeing Company Data from Experiments Y 2 of Turbulence Models" The turbulence model keyword indicates which urbulence model is to be used. 2DN44 Astrophys. GLVY Stress-epsilon K-e-zeta-f Mixing layer/ wakes     3 (* indicates "Basic Case") Separ- ation The site also serves the turbulence modeling community in other ways. VERIF/2DMEA "Workshop on CFD Uncertainty Analysis" series It includes some information AHSJ* NASA's 40% Challenge Last Updated: 03/24/2021. (2) 6.1 Turbulence Model Diagnostics (DEBUG=1) 6.2 Time Step Diagnostics (DEBUG=2) 6.3 Residual Diagnostics (DEBUG=3) 6.4 Solution Adaption Information (DEBUG=4) 6.5 Reynolds Stress Turbulence Model Diagnostics (DEBUG=5) 7. Christopher Rumsey (2) published variants of models, this site establishes Information from Lisbon University of Michigan Turbulence Modeling Gateway ASJ* (3) Related External Links to CFD Codes Fidelity CFD Workshop 2022 2D Convex curvature boundary layer (3) (2) 2DZPH: Y The argument over the use of acceleration (pressure gradient) is salient. Axisymmetric Hot subsonic jet 2D Airfoil near-wake The site should also help CFD code users to understand and compare the Y Privacy Act Statement thorough validation effort for flows of specific interest to users and 2DZPH: 2D NACA 0012 airfoil   Shock (2) 12/17/2018 - Added SA-RC verification case for NACA 4412 (2) 3 (3) (1) 3DSSD: The objective is to provide a resource for CFD developers to: High 3D ONERA M6 Wing Van Driest I Y Y Y Y Symposium on BSLm (2) An inverse modeling method was used to extract the control inputs that are required to replicate the portion of the aircraft response attributable to atmospheric disturbances from the flight-test data. The data in the following links are publicly available and are provided here as a convenience. Law of wall Law of wake BSLm Utility Codes Appendix A. (4) 2DN00* will be updated regularly as new models and/or 2DN44 weak (Number of codes included in verification are indicated by the value in parentheses) (2) 3 (1) SST-Vm Turbulence Models (1) Recent Significant Site Updates 3 Vortex flows Note that it is not the SA 2DZP: Y CFD Validation of Synthetic Jets and Turbulent Separation Control (2004 Workshop) 03/24/2021 - clarifications on use of "m" designation when P=mu_t S2 and k term ignored in momentum and energy equations 1 03/24/2021 - clarifications on use of "m" designation when P=mu_t S2 and k term ignored in momentum and energy equations (7) (1) (2) weak Axisymmetric Subsonic jet It (3) (2) 3 Models Currently Applied to Validation Cases: (3) ASWBLI AHSSJ* TurBase (knowledge base for turbulence data) Wray-Agarwal (2) SA NPARC Alliance CFD Verification and Validation Turbulent Manufactured Solutions The Dryden wind turbulence model, also known as Dryden gusts, is a mathematical model of continuous gusts accepted for use by the United States Department of Defense in certain aircraft design and simulation applications. Christopher Rumsey (3) (2) 1 (7) Y 2D NACA 0012 Airfoil Johns Hopkins Turbulence Databases (JHTDB) Y AHSSJ: It includes some information This site provides simple test cases and grids, along with sample Privacy Act Statement Compressibility 1 Y   Y developers can be conducted. Compressibility (2) Christopher Rumsey ANSJ*   Axisymmetric Near-sonic jet Y Page Curator: (2) (2)   This latter capability is made possible through "verification" cases. (1) AIAA-2014-3274:Aerostructural optimization of the Common Research Model configuration 08/28/2020 - introduced SST-Vm variant of SST, and changed SST-V naming to SST-Vm on many of the results pages (2) 12/17/2018 - Added SA-RC verification case for NACA 4412 Y (3) ASWBLI: (3) Symposium on Mixing Van Driest II It includes some information a consistent basis of comparison as a starting point from which a more at High Reynolds Number Other Resources CFL3D structured grid code 2D NACA 0012 Airfoil Y (2) (2) (3) CFL3D structured grid code 2D Finite Flat Plate   (3) (3) Related Workshops 2DANW* This greater sensitivity is likely related to the particular implementation of the wall boundary condition on omega. Turbulence Model Benchmarking Working The k-kL-MEAH2015 two-equation turbulence model, Eqs. Law of wall It has been pointed out by many investigators that a turbulence model plays an important role especially in drag AHSJ* Wilcox k-omega disseminate new models to the CFD community. AHSSJ* Other Resources, CFD Validation of Synthetic Jets and Turbulent Separation Control (2004 Workshop), Johns Hopkins Turbulence Databases (JHTDB), NPARC Alliance CFD Verification and Validation, TurBase (knowledge base for turbulence data), University of Maryland Wall-Modeled Large Eddy Simulation Resource, University of Michigan Turbulence Modeling Gateway, 2D Fully-Developed Channel Flow (2) Three-Equation Models: (Number of codes included in validation are indicated by the value in parentheses) Please send us email with your wish list and other feedback. Page Curator: KTH Boundary Layer DNS/LES Data (2) ACSSJ* SST-Vm The site also serves the turbulence modeling community in other ways. Wilcox2006-klim-m 06/04/2019 - Added NASA Juncture Flow (JF) data (* indicates "Basic Case") (3) VERIF/3DB He wrote a review (once described as “discerning and sobering”) and co-holds a patent on airplane trailing vortices. Flight test data from a UH-60 Black Hawk helicopter hovering in the atmospheric turbulence downwind of a large cube-shaped hanger on a wind day were collected. 2D Hemisphere Cylinder (2) 3 Turbulent Manufactured Solutions "!# = Production -Destruction + Diffusion + Corrections •In somemodels, someterms are exact •Source terms P and De use local turbulence quantities and velocity (2) Y (2) 2DFDC: 2D Fully-Developed Channel Flow ACSSJ: Shock VERIF/2DCJ Y 2DZPH 3.9 Running the Code. about turbulent manufactured solutions. Van Driest II Jet Anom- aly SA-QCR2000   of Turbulence Models" NASA Glenn Research Center, Cleveland, OH 44135 ... turbulence model formulations provided improved mean flow predictions relative to the standard models. (2) (2) Extended Cases: Y   (2) These turbulence models are coded as self contained module decks that can be interfaced with a number of CFD main flow solvers. 2 (2) 3 Y Menter k-omega SST 1   SA-QCR2013 SA-AFT The objective is to provide a resource for CFD developers to: The site also serves the turbulence modeling community in other ways. (2) American Institute of Aeronautics and Astronautics (AIAA). Brian Smith of Lockheed-Martin, or NASA Common Research Model They are provided as-is and accuracy 2D Convex curvature boundary layer   provide a central location where Reynolds-averaged Navier-Stokes (RANS) weak If you have any questions or comments, please contact: *SA-neg results should be essentially Recent Significant Site Updates naming conventions in order to help avoid confusion when comparing results   SA-neg* Y (2)   analysis. (2) Israeli CFD Center Outline • Overview of turbulence model classes and models used by workshop analysts • Overview of Reynolds stress models • Effect of turbulence models on one of the static cases • Case 3A (Mach = 0.85, AOA = 5 deg, Gas: R-134a) • Effect of turbulence models on one of the dynamic cases • Case 2 (Mach = 0.74, AOA = 0 deg, (1) 2 "The Mission" half of the talk will first argue that a model should be essentially universal, considering that a single flow field can contain many deeply different flow modules. various sources, including experiment, DNS, and LES. (2) (2) Y Christopher Rumsey (2) (2) Related External Links to Validation Databases and 2D Convex curvature boundary layer The improved mixing rate enabled by the Tam-Ganesan model and the variable diffusion correction was the result of increased turbulent   (1) 3 2DN00: The data in the following links are publicly available and are provided here as a convenience. Seven-Equation Epsilon-Based Full Reynolds Stress Models: SA-QCR2000 Y (2) Page Curator: ANSJ: (2) Credit: NASA. Spalart-Allmaras (2) ASBL* (1) (3) Y ASBL* Y Seven-Equation Omega-Based Full Reynolds Stress Models: (3) ASJ* 2DZP: Model Readiness Rating System (MRR) Last Updated: 03/24/2021, (Number of codes included in verification are indicated by the value in parentheses), Turbulence Model   intention of this effort to provide validation of turbulence models for a 2DN00* 07/20/2020 - Added SA-BCM transition model description   It is still an important issue as to which turbulence model or correction is superior in industries applications and far from being settled.   2DN44: (3) k-kL- MEAH2015m NASA's 40% Challenge (7) AHSSJ Boundary layers Fidelity CFD Workshop 2022 VERIF/2DANW Mixing layer Two-Equation Models: at High Reynolds Number Related Workshops provide a central location where Reynolds-averaged Navier-Stokes (RANS) Turbulent Flow Validation Databases Cases and Grids for Turbulence Model Numerical Shock (2) in 2-equation models (throughout site) 2DN00* (1) Cui, J., Agarwal, R. K., "CFD Validation of Turbulent Separation Control on a 2D Hump (NASA Langley Workshop Validation: Case 3)," AIAA 2005-5013 , June 2005. Responsible NASA Official: (1) Turbulence Model Benchmarking Working verification/validation cases are incorporated and tested. Y (2)   (3) SSTm Higher Mach is not guaranteed; questions should be directed to the sources of the data provided. It is anticipated that this site
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