Accession Number : ADA266748


Title :   Turbulence and Transition Modeling for High-Speed Flows


Descriptive Note : Final rept. 15 Sep 89-14 Mar 93,


Corporate Author : DCW INDUSTRIES INC LA CANADA CA


Personal Author(s) : Wilcox, David C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266748.pdf


Report Date : 15 Apr 1993


Pagination or Media Count : 41


Abstract : This report summarizes research conducted during the past three and a half years aimed at developing and testing a turbulence/transition model applicable to high-speed turbulent flows. The first two years of the project focused on fully turbulent flows, while emphasis shifted to boundary-layer development in the transition region during the final year and a half. This report includes a brief summary of research accomplished during the first three years and cites publications that describe research results in greater detail. The main body of this report summarizes research conducted during the final six months of the period of performance. The primary results of the last six months of the project are elimination of the kappa-omega model's sensitivity to the freestream value of omega and development of a method for triggering transition at a specified location, independent of the freestream turbulence level.


Descriptors :   *TURBULENT FLOW , *BOUNDARY LAYER TRANSITION , VELOCITY , MODELS , TURBULENT BOUNDARY LAYER , PRESSURE , REYNOLDS NUMBER , BOUNDARY LAYER FLOW , HYPERSONIC FLOW , INCOMPRESSIBLE FLOW , FREE STREAM , TRANSITIONS , SENSITIVITY , BOUNDARY LAYER , TURBULENCE


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE