Type of Document Dissertation Author Rodriguez, Carlos G. Author's Email Address email@example.com 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
Date of Defense 1997-07-11 Availability unrestricted AbstractONE-DIMENSIONAL, FINITE-RATE MODEL FOR GAS-TURBINE COMBUSTORS
Carlos G. Rodriguez
Committee Chairman: Walter F. O'Brien
Department of Mechanical Engineering
Virginia Polytechnic Institute and State University
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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