Методика моделирования нестационарного высокочастотного температурного состояния поршня двигателя внутреннего сгорания

Abstract

The combustion chamber surface coatings with low heat-conductivity are a promising means of improving of internal combustion engine quality indexes. However simulation of nonstationary high-frequency temperature state of the combust ion chamber components in the presence of the partially-dynamic heat insulation effect is impeded by a significant amount of computation. The article contains: (a) the method of simulation based on dividing the sought temperature field into zones with dissimilar heat-conduct ivi ty problem statement , (b) the calculated temperature oscillations of the piston surface with the ceramics coating, (c) the obtained dynamic part of the heat-insulating effect. Applying of the presented technique makes possible the engine workflow simulation improvement.