Type of Document	Dissertation
Author	Rodriguez, Carlos G.
Author's Email Address	ingaerme@vtvm1.cc.vt.edu
URN	etd-7197-151428
Title	One-Dimensional, Finite-Rate Model for Gas-Turbine Combustors
Degree	PhD
Department	Mechanical Engineering
Advisory Committee	Advisor Name Title Ganeshan, Balakrishnan Moore, John Ng, Fai Vandsburger, Uri O'Brien, Walter F. Jr. Committee Chair
Keywords	Control-Volume Numerical-Methods One-Dimensional Blow-out
Date of Defense	1997-07-11
Availability	unrestricted
Abstract ONE-DIMENSIONAL, FINITE-RATE MODEL FOR GAS-TURBINE COMBUSTORS by Carlos G. Rodriguez Committee Chairman: Walter F. O'Brien Department of Mechanical Engineering Virginia Polytechnic Institute and State University Abstract An unsteady, finite-rate, one-dimensional model has been developed for the analysis for gas-turbine combustors. The basis of the model is the one-dimensional, integral form of the conservation equations for multi-species, non-equilibrium, reacting mixtures. Special procedures were devised for the flow-division of the inlet flow into primary- and annular-flows, for both straight- and reverse-flow combustors. This allows the model to handle complete combustor configurations, which at present are beyond the reach of more sophisticated CFD tools. The model was validated with a steady-state analytical solution for a basic problem, and with steady-state results from a production code applied to a production combustor. Additional calculations show the ability of the code to predict blow-out due to rich and lean mixtures, and to predict the response of a combustor to perturbations in operating and boundary conditions.
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