ОБОСНОВАНИЕ ПРИМЕНЕНИЯ ЧИСЛЕННОГО ГАЗОДИНАМИЧЕСКОГО МОДЕЛИРОВАНИЯ РАБОЧИХ ПРОЦЕССОВ В ОСЕВЫХ ТУРБИНАХ СВЕРХМАЛОЙ МОЩНОСТИ ПРИ ИХ ПРОЕКТИРОВАНИИ

Abstract

The problems of creating and calculating the numerical models of an axial ultra-low power turbine stage are considered. The technique of contracting the flow area and finite element mesh in an axial turbine is given. The efficiency coefficient and specific power characteristics which depend on the degree of pressure reduction Tit = 2... 6 and on the loading parameter Yt = 0.1 ...0.5 are obtained. The verification of the numerical experiment results by comparison with field experiment data is made.