Особливості температурного стану стінки камери згоряння поршня з шаром теплоізоляції в зоні наявності паливної плівки

Abstract

The simulation results of the nonstationary high-frequency temperature state of the coated piston combustion chamber surface of the automotive diesel engine in the regions of the fuel film presence are discussed in the article. The one-dimensional mathematical model taking into account heat exchange among fuel, wall and gas as well as processes of mixing and vaporisation of the fuel in the film is applied. The revealed partially-dynamic heat insulation effects conjointly with influence on them from operation conditions and initial fuel film thickness and temperature are analyzed.