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	Doctor of Philosophy
Department	Mechanical Engineering
Advisory Committee	Advisor Name Title Walter F. O'Brien Committee Chair Balakrishnan Ganeshan none John Moore none Uri Vandsburger none Wing F. Ng none
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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