Accession Number : ADP001948

Title :   Numerical Simulation of Turbulent Trailing Edge Flows,

Corporate Author : NATIONAL AERONUATICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER

Personal Author(s) : Horstman,C. C.

Report Date : 1982

Pagination or Media Count : 9

Abstract : Numerical simulations of the time-dependent, Reynolds-averaged, Navier-Stokes equations, employing a two-equation turbulence model, are presented and compared with measurements at transonic Mach numbers. The test flows include an asymmetric flow with no separation, an asymmetric flow with a small region of separation and a symmetric flow with a large shock-wave induced separated zone. Comparisons are made for mean surface quantities as well as for mean and fluctuating flow-field quantities. For the trailing-edge flows with little or no separation, the solutions correctly predict all the major features of the flow field. Treatment of the viscous-inviscid interaction was found to be important for predicting these test cases.

Descriptors :   *Turbulent flow, Flow fields, Trailing edges, Navier Stokes equations, Transonic flow, Supercritical airfoils, Boundary layer

Distribution Statement : APPROVED FOR PUBLIC RELEASE