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An implicit, density-based algorithm for coupled simulations of arbitrary gas mixtures

di Mare, Francesca and di Mare, Luca (2015) An implicit, density-based algorithm for coupled simulations of arbitrary gas mixtures. SIAM NC15, International Conference on Numerical Combustion, 19.-22. April 2015, Avignon, Frankreich.

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The development of new design concepts for cleaner and efficient propulsion and energy transformation devices (gas turbines, combined gas-steam generation groups) requires the global optimization of all machine components. In the present work a novel numerical approach is illustrated, which allows to model accurately and efficiently departures from an ideal behaviour of the working fluid in density-based solvers. The concept of residual internal energy permits a ready extension of classic flux-difference splitting or flux-splitting solution algorithms to (reacting) mixtures of thermally and calorically imperfect gases of variable composition. A fully implicit formulation is then derived in terms of mass fractions.

Item URL in elib:https://elib.dlr.de/102101/
Document Type:Conference or Workshop Item (Speech)
Title:An implicit, density-based algorithm for coupled simulations of arbitrary gas mixtures
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
di Mare, FrancescaDLR, Institute of Propulsion TechnologyUNSPECIFIED
di Mare, LucaImperial College London, Dept. of Mechanical EngineeringUNSPECIFIED
Date:19 April 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Roe solver, Flux-difference splitting, implicit, real gas, combustion
Event Title:SIAM NC15, International Conference on Numerical Combustion
Event Location:Avignon, Frankreich
Event Type:international Conference
Event Dates:19.-22. April 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Numerical Methodes
Deposited By: Mare, Francesca
Deposited On:19 Jan 2016 12:54
Last Modified:10 May 2016 23:42

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