Knowledge Transfer from Detailed 3-D CFD Codes to System Simulation Tools –CCV Modeling in SI Engine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00307726" target="_blank" >RIV/68407700:21220/16:00307726 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1515/mecdc-2016-0002" target="_blank" >http://dx.doi.org/10.1515/mecdc-2016-0002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/mecdc-2016-0002" target="_blank" >10.1515/mecdc-2016-0002</a>

Result language

angličtina

Original language name

Knowledge Transfer from Detailed 3-D CFD Codes to System Simulation Tools –CCV Modeling in SI Engine

Original language description

The paper deals with CCV knowledge transfer from reference data (either experiments or 3-D CFD data) into system simulation SW tools (based on 0-D/1-D CFD). It was verified that CCV phenomenon can be modeled by means of combustion model perturbations. The proposed methodology consists of two major steps. First, individual cycle data have to be matched with the 0-D/1-D model, i.e., combustion model parameters are varied to achieve the best possible match of in-cylinder pressure traces. Second, the combustion model parameters (obtained in previous step) are statistically evaluated to obtain PDFs and cross-correlations. Then such information is imposed to the 0-D/1-D tool to mimic pressure traces CCV. Good correspondence with the reference data is achieved only if both PDFs and cross-correlations are imposed simultaneously. Different engine operating points were evaluated to draw some general conclusions in terms of CCV. It was confirmed that turbulence properties and initial flame kernel development are the dominant factors. However, these factors are neither independent nor random – they seem to be correlated. Operating points with high CCV are more organized in terms of the statistics – they exhibit strong cross-correlations of combustion model parameters.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BJ - Thermodynamics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MECCA Journal of Middle European Construction and Design of Cars

ISSN

1214-0821

e-ISSN

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Volume of the periodical

XIV

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

17-32

UT code for WoS article

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EID of the result in the Scopus database

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