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Date of Publication:2007-01-01

Journal:内燃机工程

Affiliation of Author(s):能源与动力学院

Issue:3

Page Number:25-29

ISSN No.:1000-0925

Abstract:The in-cylinder gas and combustion chamber parts of diesel engine, which include cylinder head, piston group, and cylinder liner, were treated as a coupling. Based on the heat transfer numerical simulation, the wall boundary condition of in-cylinder flow computation was obtained. After the simulation of intake air compression process, the three-dimensional transient flow numerical simulation of 6110 diesel engine was performed with CFD software STAR-CD and ES-ICE. The influence of fuel injection, atomization and combustion on in-cylinder flow was analyzed specially. From the results, it can be seen that the type of in-cylinder flow field is directly influenced by fuel injection during the process of combustion, and the large scale in-cylinder swirl flow is completely broken in certain space.

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