Browse Publications Technical Papers 2008-01-1818
2008-06-23

3-D Numerical Simulation of Transient Heat Transfer among Multi-Component Coupling System in Internal Combustion Chamber 2008-01-1818

A 3-D numerical analysis model of transient heat transfer among the multi-component coupling system in combustion chamber of internal combustion engine has been developed successfully in the paper. The model includes almost all solid components in combustion chamber, such as piston assembly, cylinder liner, cylinder head gasket, cylinder head, intake valves and exhaust valves, etc. With two different coupling heat transfer modes, one is the lubricant film heat conduction between two moving components, another is the contact heat conduction between two immovable solid components, and with the direct coupled-field analysis method of FEM, the heat transfer relation among the components is established. The simulation result dedicates the transient heat transfer process among the components such as moving piston assembly and cylinder liner, moving valves and cylinder head. The effect of cylinder head gasket on heat transfer among the components is also studied. The model and the software will be important analysis tools to study the whole engine heat transfer, heat balance and heat loads in internal combustion engine.

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