СОПРЯЖЁННЫЙ ТЕПЛОГИДРАВЛИЧЕСКИЙ АНАЛИЗ БЛОКА СОПЛОВЫХ АППАРАТОВ ТУРБИНЫ ВЫСОКОГО ДАВЛЕНИЯ ПРИ РАБОТЕ В РЕАЛЬНЫХ УСЛОВИЯХ НАГРУЖЕНИЯ

Abstract

This research is focused on the conjugate heat transfer simulation of nozzle guide vanes. In order to properly es¬timate blade temperature distribution the real boundary conditions were considered. Both measured radial and circum¬ferential distortion after combustion chamber were used. It allowed us to predict local increase in blade temperature and temperature gradient determining the stress-stain .state. Apart from that, the hot gases radiation was taken into account that helps us to avoid overestimated values of cooling efficiency.