<div class="csl-bib-body">
<div class="csl-entry">Lauer, T., & Frühhaber, J. (2020). Towards a Predictive Simulation of Turbulent Combustion?—An Assessment for Large Internal Combustion Engines. <i>Energies</i>, <i>14</i>(1), 1–26. https://doi.org/10.3390/en14010043</div>
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dc.identifier.issn
1996-1073
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/20168
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dc.description.abstract
Frequently the question arises in what sense numerical simulation can be considered predictive if prior model tuning with test results is necessary. In this paper a summary of the present Computational Fluid Dynamics (CFD) simulation methods for in-cylinder modelling is presented with a focus on combustion processes relevant for large engines. The current discussion about the sustainability of internal combustion engines will have a strong impact on applying advanced CFD methods in industrial processes. It is therefore included in the assessment. Simplifications and assumptions of turbulence, spray, and combustion models, as well as uncertainties of model boundary conditions, are discussed and the future potential of an advanced approach like Large Eddy Simulation (LES) is evaluated. It follows that a high amount of expertise and a careful evaluation of the numerical results will remain necessary in the future to apply the best-suited models for a given combustion process. New chemical mechanisms will have to be developed in order to represent prospective fuels like hydrogen or OME. Multi-injection or dual fuel combustion will further pose high requirements to the numerical methods. Therefore, the further development and validation of advanced mixture, combustion and emission models will remain important. Close cooperation between academia, code suppliers and engine manufacturers could promote the necessary progress.
en
dc.description.sponsorship
FFG - Österr. Forschungsförderungs- gesellschaft mbH; AVL LIST GMBH
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dc.language.iso
en
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dc.publisher
MDPI
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dc.relation.ispartof
Energies
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
combustion
en
dc.subject
computational fluid dynamics
en
dc.subject
emissions
en
dc.subject
internal combustion engine
en
dc.subject
large engines
en
dc.subject
LES
en
dc.subject
Spray
en
dc.subject
turbulence
en
dc.title
Towards a Predictive Simulation of Turbulent Combustion?—An Assessment for Large Internal Combustion Engines