TY - GEN
T1 - Modeling aluminum combustion in oxidizing environment with the gibbs formulation
AU - Stewart, D. Scott
AU - Lee, Kibaek
N1 - Funding Information:
DSS (at University of Florida) is supported by the Office of Naval Research (ONR), Navy N00014-19-1-2084, and the Air Force Office of Scientific Research (AFOSR) , FA9550-19-1-0204. KL and DSS efforts recorded here have been recently supported at the University of Illinois by ONR grant, N00014-16-1-2057 and AFOSR grant AF FA9550-17-1-0223.
Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - We present a high-level overview of a modeling approach based on a non-equilibrium, multicomponent, thermodynamic formulation, we have dubbed the Gibbs formulation, and discuss its application to this complex problem of aluminum combustion in an oxidizing atmosphere. The Gibbs formulation can be thought of as a generalization of the classical non-equilibrium formulations used in gaseous, multicomponent combustion theory, but expanded to mixtures with simultaneously present concentrations of solids, liquids and gases. We present an example of this approach applied to the ignition and burning of a nano-sized aluminum slab coated by a thin alumina layer. The model considers up to six components: solid, liquid and gaseous aluminum, solid and liquid aluminum oxide (alumina), and oxygen. We discuss the many different behaviors and possible regimes of combustion, that depend on what is assumed for the various diffusion and reaction rates.
AB - We present a high-level overview of a modeling approach based on a non-equilibrium, multicomponent, thermodynamic formulation, we have dubbed the Gibbs formulation, and discuss its application to this complex problem of aluminum combustion in an oxidizing atmosphere. The Gibbs formulation can be thought of as a generalization of the classical non-equilibrium formulations used in gaseous, multicomponent combustion theory, but expanded to mixtures with simultaneously present concentrations of solids, liquids and gases. We present an example of this approach applied to the ignition and burning of a nano-sized aluminum slab coated by a thin alumina layer. The model considers up to six components: solid, liquid and gaseous aluminum, solid and liquid aluminum oxide (alumina), and oxygen. We discuss the many different behaviors and possible regimes of combustion, that depend on what is assumed for the various diffusion and reaction rates.
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U2 - 10.2514/6.2020-1424
DO - 10.2514/6.2020-1424
M3 - Conference contribution
AN - SCOPUS:85091912276
SN - 9781624105951
T3 - AIAA Scitech 2020 Forum
BT - AIAA Scitech 2020 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2020
Y2 - 6 January 2020 through 10 January 2020
ER -