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Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 0.7

ISSN Druckformat: 1940-2503
ISSN Online: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2013005819
pages 333-353

PREDICTOR−CORRECTOR SPLIT PROJECTION METHOD FOR TURBULENT REACTIVE FLOW

David Carrington
Los Alamos National Laboratory
Xiuling Wang
Purdue University Northwest
Darrell W. Pepper
NCACM, Department of Mechanical Engineering, University of Nevada Las Vegas, Las Vegas, NV 89154, USA

ABSTRAKT

A predictor−corrector split (PCS) projection method based on a fractional step finite-element method (FEM) is used for modeling turbulent combustion. The PCS system advances the accuracy and range of applicability of the KIVA combustion model. The algorithm, combined with the KIVA spray and chemistry models and a moving mesh capability, is being implemented into a new generation of KIVA software, KIVA-hpFE to increase modeling predictability. The FEM formulation uses an h-adaptive procedure to model turbulent reactive flow over a wide range of velocities of various fluids. A к − ω turbulent closure scheme is used in conjunction with the turbulent form of the Navier−Stokes equations. The method is applicable to Newtonian and non-Newtonian flows and engineering problems involving fluid structure interactions, porous media, and solidification. The model is designed to produce a minimal amount of computational effort when compared to fully resolved grids at comparable accuracy.


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