Accession Number : ADA326121

Title :   Fluid Mechanics and Heat Transfer Research Related to High Temperature Gas Turbines.

Descriptive Note : Final rept. 1 Jul 91-30 Jun 94,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS

Personal Author(s) : Eckert, E. R. ; Goldstein, R. J. ; Jabbari, M. Y. ; Patankar, S. V. ; Simon, T. W.

PDF Url : ADA326121

Report Date : 01 JAN 1995

Pagination or Media Count : 58

Abstract : The objective of the research was to enhance the understanding of airfoil passage transport processes and film cooling by conducting a coordinated experimental and computational study of flow behavior and airfoil and end-wall surface heat transfer as influenced by turbulence and more coherent structures in the passage flow, streamline curvature, and other effects. Computation is used to evaluate and develop film cooling schemes, as well as to extend by analysis the experience base beyond the experimental cases investigated. The outcome of the research will be improved physical understanding and computational models of these processes, both of which are of direct utility to the engine designers in the aircraft industry. The research project finds a number of innovative features. They include: (a) detailed local heat (mass) transfer measurements on turbine blade surfaces, (b) investigation of the mass transfer and turbulent characteristics in curved channel flows, (c) determination of local film cooling effectiveness in endwall film cooling and total-coverage discrete hole wall cooling, (d) evaluation of a fence for endwall flow control, and (e) accurate numerical modeling in film cooling.

Descriptors :   *HEAT TRANSFER, *TURBULENT FLOW, *TURBINE BLADES, *MASS TRANSFER, *FILM COOLING, MATHEMATICAL MODELS, AIRFOILS, GAS TURBINES, TRANSPORT PROPERTIES, CURVATURE, WALLS, HOT GASES, SURFACE TEMPERATURE, CHANNEL FLOW, FLUID MECHANICS, AIRCRAFT DESIGN.

Subject Categories : Aircraft
      Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE