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Two‐dimensional numerical study of cross‐flow filtration combustion
Author(s) -
Dandekar Hemant W.,
Puszynski Jan A.,
Hlavacek Vladimir
Publication year - 1990
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690361105
Subject(s) - combustion , filtration (mathematics) , mechanics , flow (mathematics) , porosity , materials science , process (computing) , thermodynamics , mathematics , chemistry , composite material , physics , computer science , statistics , organic chemistry , operating system
Transition metal nitrides can be synthesized in the combustion regime using a self‐propagating, high‐temperature synthesis by the process of filtration combustion. A detailed two‐dimensional numerical study for the filtration combustion process in the cross‐flow configuration is presented. The process is modeled by a two‐dimensional pseudohomogenous model. The model equations, which are very stiff and exhibit varying time and length scales, are solved using finite differences on a two‐dimensional orthogonal adaptive mesh. The effects of pressure, bed height and bed porosity on combustion front propagation and final conversion are studied. A series of full simulations for the titanium‐nitrogen system shows good agreement between theoretical predictions and experimental observations.