Accession Number:

ADA383730

Title:

AFOSR Focused Research Initiative: Low-Emissions, High-Performance Gas Turbine Engines. Addenda A through E

Descriptive Note:

Final rept. 30 Sep 1995-31 Aug 1999

Corporate Author:

GE AIRCRAFT ENGINES CINCINNATI OH

Report Date:

1999-08-01

Pagination or Media Count:

253.0

Abstract:

A joint industryuniversity research and technology program was conducted under AFOSR sponsorship. Participants were GE Aircraft Engines GE Corporate RD California Institute of Technology, Georgia Institute of Technology, Massachusetts Institute of Technology, Pennsylvania State University, University of California at Berkeley and Irvine, and University of Illinois at Urbana-Champaign. The program comprised 1 fundamental research essential to the development of low-emissions, high-performance combustors for commercial and military use and 2 transition of the fundamental knowledge to industry. The objective was to upgrade the state of the art of combustion design methodology and to design and demonstrate an innovative, low-emissions, high-performance gas turbine combustion concept. Fundamental experiments were conducted for 1 a novel coaxial jet flame. 2 a liquid-fuelair mixing device of radial swirlers swirlcup. and 3 a natural gasair mixer using counterrotating axial swirlers DACRS. Parallel activities included 1 formulation and validation of semianalytical mechanistic models for predicting performance and emissions of combustors. 2 improved second-order closure based turbulent combustion models. 3 vortex methods, 4 large-eddy simulation with linear eddy subgrid modeling. and 5 an advanced spray model involving macroscales and microscales.

Subject Categories:

  • Combustion and Ignition
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE