引言 内燃机传热全仿真模拟是由缸内燃气与燃烧室部件以及燃烧室部件之间的耦合传热这两大部分组成的。其中燃烧室部件整体耦合系统的传热研究相当困难，这是因为活塞组与气缸套间的相对运动，使得确定运动部分的边界条件成了系统耦合传热模拟的最大难点，而这边界条件恰恰是影 INTRODUCTION The simulation of internal combustion engine heat transfer is composed of two major parts, namely, the heat transfer between the cylinder gas and the combustion chamber components and the combustion chamber components. The research on the heat transfer of the integral coupling system in the combustion chamber is quite difficult because the relative motion between the piston and the cylinder liner makes the determination of the boundary condition of the moving part the biggest difficulty in the coupled heat transfer simulation. shadow