LES Simulation of Direct Injection SI-Engine In-Cylinder Flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00193058" target="_blank" >RIV/68407700:21220/12:00193058 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

LES Simulation of Direct Injection SI-Engine In-Cylinder Flow

Popis výsledku v původním jazyce

The present paper deals with the application of the LES approach to in-cylinder flow modeling. The main target is to study cycle-tocycle variability (CCV) using 3D-CFD simulation. The engine model is based on a spark- ignited single-cylinder research engine. The results presented in this paper cover the motored regime aiming at analysis of the cycle-resolved local flow properties at the spark plug close to firing top dead center. The results presented in this paper suggest that the LES approach adoptedin the present study is working well and that it predicts CCV and that the qualitative trends are in-line with established knowledge of internal combustion engine (ICE) in-cylinder flow. The results are evaluated from a statistical point of view based oncalculations of many consecutive cycles (at least 10). Special attention is paid to local properties at the spark plug as these local conditions are supposed to strongly influence early phase of combustion process (early flame kernel dev

Název v anglickém jazyce

LES Simulation of Direct Injection SI-Engine In-Cylinder Flow

Popis výsledku anglicky

The present paper deals with the application of the LES approach to in-cylinder flow modeling. The main target is to study cycle-tocycle variability (CCV) using 3D-CFD simulation. The engine model is based on a spark- ignited single-cylinder research engine. The results presented in this paper cover the motored regime aiming at analysis of the cycle-resolved local flow properties at the spark plug close to firing top dead center. The results presented in this paper suggest that the LES approach adoptedin the present study is working well and that it predicts CCV and that the qualitative trends are in-line with established knowledge of internal combustion engine (ICE) in-cylinder flow. The results are evaluated from a statistical point of view based oncalculations of many consecutive cycles (at least 10). Special attention is paid to local properties at the spark plug as these local conditions are supposed to strongly influence early phase of combustion process (early flame kernel dev

Druh

C - Kapitola v odborné knize

CEP obor

JT - Pohon, motory a paliva

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0125" target="_blank" >ED2.1.00/03.0125: Pořízení technologie pro Centrum vozidel udržitelné mobility</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Multi-Dimensional Engine Modeling, 2012, SP-2331

ISBN

978-0-7680-7612-7

Počet stran výsledku

13

Strana od-do

123-135

Počet stran knihy

400

Název nakladatele

SAE International

Místo vydání

Warrendale, PA 15096

Kód UT WoS kapitoly

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