The Premixed Conditional Moment Closure Method Applied to Idealized Lean Premixed Gas Turbine Combustors-Reference-Cited by-同舟云学术

The Premixed Conditional Moment Closure Method Applied to Idealized Lean Premixed Gas Turbine Combustors

Published:2003-10-01 Issue:4 Volume:125 Page:895-900
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Martin S. M.¹,Kramlich J. C.²,Kosa´ly G.²,Riley J. J.²

Affiliation:

1. 17136 Bak Road, Belleville, MI 48111-3525

2. Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195-2600

Abstract

This paper presents the premixed conditional moment closure (CMC) method as a new tool for modeling turbulent premixed combustion with detailed chemistry. By using conditional averages the CMC method can more accurately model the affects of the turbulent fluctuations of the temperature on the reaction rates. This provides an improved means of solving a major problem with traditional turbulent reacting flow models, namely how to close the reaction rate source term. Combined with a commercial CFD code this model provides insight into the emission formation pathways with reasonable runtimes. Results using the full GRI2.11 methane kinetic mechanism are compared to experimental data for a backward-facing step burning premixed methane. This model holds promise as a design tool for lean premixed gas turbine combustors.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/125/4/895/5576058/895_1.pdf

Reference12 articles.

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2. Smith N. S. A., 1994, “Development of the Conditional Moment Closure Method for Modeling Turbulent Combustion,” Ph.D. thesis, University of Sidney.

3. Klimenko, A. Y. , 1990, “Multicomponent Diffusion of Various Admixtures in Turbulent Flow,” Fluid Dyn., 25, pp. 327–334.

4. Bilger, R. W., 1991, “Conditional Moment Methods for Turbulent Reacting Flow Using Crocco Variable Conditions,” Charles Kolling Report, Department of Mechanical Engineering, the University of Sydney, TN F-99.

5. Bilger, R. W. , 1993, “Conditional Moment Closure for Turbulent Reacting Flow,” Phys. Fluids A, A5(2), 436–444.

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