SIMULATION OF IN-CYLIDER RADIATIVE HEAT TRANSFER OF DIESEL ENGINE WITH MONTE-CARLO METHOD

Zhaoda Yan
Dept. of Energy Engineering, Zhejiang University

Zhentao Liu
Dept. of Energy Engineering, Zhejiang University

Jie Chen
Dept. of Energy Engineering, Zhejiang University

Xiaoli Yu
Dept. of Energy Engineering, Zhejiang University

C. S. Cheung
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR

Abstract

A multi-zone (multi-dimensional) is used to model the in-cylinder radiative heat transfer of a direct injection diesel engine. The space and the surface of the (o- combustion chamber are approximated by simple geometric shapes and discretized. Taking into consideration of the complexity of the structure of the combustion chamber and the non-uniform distribution of the radiation medium, the Monte−Carlo method is used to simulate the in-cylinder radiative heat transfer.