About: Linear Turbulence Model Validation for the Case of In-cylinder Phenomena Modeling

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Práce se zabývá modelováním vysokotlaké fáze čtyřdobého motoru. Simulační program vytvořený u autorů je založen na Eulerovském přístupu k 3-D modelování. Použité lineární modely turbulence jsou jedno a dvou rovnicové, pro modelování viskozity je použit Boussinesqův přístup. Spalování je založeno na předpovězeném postupu fronty plamene pomocí šíření pasivního skaláru. Byla zkoumána jak numerická přesnost různých metod, tak schopnost předpovědi parametrů turbulentního proudění ve srovnání s nepříliš četnými experimenty. (cs) The presented work deals with in-cylinder process modeling, it concerns a high- pressure phase of a four stroke engine cycle (compression and expansion stroke). The Eulerian approach is applied to a general 3-D case. The major focus of the work is turbulence modeling. Linear one-equation models and two-equation ones based on the Boussinesq hypothesis are applied. A~combustion model is added which deals with flame front propagation by means of solving a transport equation. From the numerical point of view, a finite volume method combined with an explicit multi-stage Runge-Kutta scheme is implemented. The properties of the whole mathematical model are tested and the influence of important input parameters is analyzed. A comparison of measured and computed data is presented as well. The presented work deals with in-cylinder process modeling, it concerns a high- pressure phase of a four stroke engine cycle (compression and expansion stroke). The Eulerian approach is applied to a general 3-D case. The major focus of the work is turbulence modeling. Linear one-equation models and two-equation ones based on the Boussinesq hypothesis are applied. A~combustion model is added which deals with flame front propagation by means of solving a transport equation. From the numerical point of view, a finite volume method combined with an explicit multi-stage Runge-Kutta scheme is implemented. The properties of the whole mathematical model are tested and the influence of important input parameters is analyzed. A comparison of measured and computed data is presented as well. (en)
Title	Linear Turbulence Model Validation for the Case of In-cylinder Phenomena Modeling Validace lineárních modelů turbulence pro simulaci procesů ve válci motoru (cs) Linear Turbulence Model Validation for the Case of In-cylinder Phenomena Modeling (en)
skos:prefLabel	Linear Turbulence Model Validation for the Case of In-cylinder Phenomena Modeling Validace lineárních modelů turbulence pro simulaci procesů ve válci motoru (cs) Linear Turbulence Model Validation for the Case of In-cylinder Phenomena Modeling (en)
skos:notation	RIV/68407700:21220/07:02135825!RIV08-MSM-21220___
http://linked.open.../vavai/riv/strany	37;59
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0568)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Vítek, Oldřich Polášek, Miloš Macek, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	431125
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/07:02135825
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	3-D CFD; Boussinesq-type turbulence model; Comparison with experiments; Eulerian approach; Internal combustion engine; Movable mesh (en)
http://linked.open.../riv/klicoveSlovo	Internal combustion engine 3-D CFD Boussinesq-type turbulence model Comparison with experiments Movable mesh Eulerian approach
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[51CC736B4878]
http://linked.open...i/riv/nazevZdroje	MECCA Journal of Middle European Construction and Design of Cars
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Josef Božek Research Center of Engine and Automotive Technology II
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	5
http://linked.open...iv/tvurceVysledku	Macek, Jan Vítek, Oldřich Polášek, Miloš
issn	1214-0821
number of pages	23 (xsd:int)
http://localhost/t...ganizacniJednotka	21220

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