内燃机燃烧室壁面周期性瞬时温度波的扰动、渗透机理研究

Study on the mechanism of disturbance and permeation of the periodic instantaneous temperature wave for the internal combustion engine

以热传导的基本方程为基础 ,分析了一维瞬态温度场的解析式 ,充分讨论了周期性瞬态温度波的扰动、渗透机理。并以柴油机活塞为例 ,考察了在几种假定情况下 ,内燃机燃烧室壁面热传播的速度以及温度波的渗透和衰减情况。

On the ground of the basic equations of heat transfer, this thesis focuses on the analysis of the analytic formula of the one-dimensioned instantaneous temperature field as well as the thorough discussion on the mechanism of the periodic instantaneous temperature wave disturbance and permeation. Besides, with several supposed diesel piston cases, it involves the examination of the speed of heat transfer and permeation and damping of temperature wave on the combustion-chamber surface of the internal combustion engine.