Comparative analysis of three simulation models applied on a motored internal combustion engine

Pariotis, EG; Kosmadakis, GM; Rakopoulos, CD

dc.contributor.author	Pariotis, EG	en
dc.contributor.author	Kosmadakis, GM	en
dc.contributor.author	Rakopoulos, CD	en
dc.date.accessioned	2014-03-01T02:53:35Z
dc.date.available	2014-03-01T02:53:35Z
dc.date.issued	2012	en
dc.identifier.issn	01968904	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36430
dc.subject	Computational fluid dynamics	en
dc.subject	Internal combustion engine	en
dc.subject	Motoring	en
dc.subject	Quasi-dimensional	en
dc.subject	Single-zone	en
dc.subject.other	CFD models	en
dc.subject.other	Comparative analysis	en
dc.subject.other	Computational model	en
dc.subject.other	Computational time	en
dc.subject.other	Gas temperature	en
dc.subject.other	In-cylinder flows	en
dc.subject.other	Information concerning	en
dc.subject.other	Motoring	en
dc.subject.other	Quasi-dimensional	en
dc.subject.other	Quasi-dimensional model	en
dc.subject.other	Reasonable accuracy	en
dc.subject.other	Simulation model	en
dc.subject.other	Single-zone	en
dc.subject.other	Thermodynamic model	en
dc.subject.other	Top dead center	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Computer simulation	en
dc.subject.other	Diesel engines	en
dc.subject.other	Internal combustion engines	en
dc.subject.other	Cylinders (shapes)	en
dc.title	Comparative analysis of three simulation models applied on a motored internal combustion engine	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/j.enconman.2011.11.031	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.enconman.2011.11.031	en
heal.publicationDate	2012	en
heal.abstract	The motivation of the present work is to comparatively evaluate the computational time and the results obtained using three computational models of increasing complexity, for the simulation of the closed part of the cycle of an internal combustion engine with a bowl-in-piston design, running under motoring conditions in the range of 1200-3000 rpm. The first model is a single-zone thermodynamic model, the second one is a hybrid quasi-dimensional model, and the third one is a computational fluid dynamics (CFD) model. From the analysis conducted it is concluded that the single-zone model calculates with reasonable accuracy the in-cylinder pressure, while it rather underestimates the peak in-cylinder mean gas temperature near the top dead center (TDC). Its main advantageous feature is the very low computational time (1 s) compared to the 6 min and 20 h required by the quasi-dimensional and CFD models, respectively. On the other hand, the quasi-dimensional model provides information concerning the local in-cylinder temperature distribution, and describes qualitatively correctly the way the cylinder design affects the in-cylinder flow and temperature fields, as revealed by comparing its results with the corresponding ones obtained with the more accurate and time consuming CFD model. © 2012 Elsevier Ltd. All rights reserved.	en
heal.journalName	Energy Conversion and Management	en
dc.identifier.doi	10.1016/j.enconman.2011.11.031	en
dc.identifier.volume	60	en
dc.identifier.spage	45	en
dc.identifier.epage	55	en