Accession Number : ADA260277


Title :   Collaborative Testing of Turbulence Models


Descriptive Note : Final rept. 23 Jan 1990-31 Jul 1992


Corporate Author : STANFORD UNIV CA DEPT OF MECHANICAL ENGINEERING


Personal Author(s) : Bradshaw, P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260277.pdf


Report Date : 23 Dec 1992


Pagination or Media Count : 44


Abstract : This project, funded by AFOSR, ARO, NASA and ONR, was run by the writer with Profs. Brian E. Launder, University of Manchester, England, and John L. Lumley, Cornell University. Statistical data on turbulent flows, from lab. experiments and simulations, were circulated to modelers throughout the world: this is the first large-scale project of its kind to use simulation data. The modelers returned their predictions to Stanford, for distribution to all modelers and to additional participants ('experimenters'); over 100 in all. The object was to obtain a consensus on the capabilities of present-day turbulence models, and identify which types most deserve future support. This has not been completely achieved, mainly because not enough modelers could produce results for enough test cases within the duration of the project. However, a clear picture of the capabilities of various modeling groups has appeared, and the interaction has been helpful to the modelers. The results support the view that Reynolds-stress transport models are the most accurate.


Descriptors :   *TURBULENCE , *TURBULENT FLOW , TEST AND EVALUATION , STRESSES , SIMULATION , EDDIES(FLUID MECHANICS) , TRANSPORT , VISCOSITY , SKIN FRICTION , NAVIER STOKES EQUATIONS , TURBULENT BOUNDARY LAYER , PREDICTIONS , MODELS , INTERACTIONS , STATISTICAL DATA


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE