Computational modelling of convective heat transfer in a simulated engine cooling gallery

Autor:	Michael T. Wilson, Kevin Robinson, M J Leathard, J G Hawley
Rok vydání:	2007
Předmět:	Convective heat transfer Chemistry business.industry Mechanical Engineering Flow (psychology) Aerospace Engineering Mechanical engineering Heat transfer coefficient Computational fluid dynamics Combustion Coolant Heat transfer Internal combustion engine cooling business
Zdroj:	Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 221:1147-1157
ISSN:	2041-2991 0954-4070
DOI:	10.1243/09544070jauto450
Popis:	Experimental data from internal combustion (IC) engines suggests that the use of proprietary computational fluid dynamics (CFD) codes for the prediction of coolant-side heat transfer within IC engine coolant jackets often results in underprediction of the convective heat transfer coefficient. An experimental and computational study, based on a coolant gallery simulator rig designed specifically to reproduce realistic IC engine operating conditions, has been conducted to explore this issue. It is shown that the standard ‘wall function’ approach normally used in CFD models to model near-wall conditions does not adequately represent some features of the flow that are relevant in convective heat transfer. Alternative modelling approaches are explored to account for these shortcomings and an empirical approach is shown to be successful; however, the methodology is not easily transferable to other situations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ec1c8dd114e88843c0946bd99c7f17cc https://doi.org/10.1243/09544070jauto450 Zobrazit plný text záznamu