Разработка модели учета влияния износа срабатываемого покрытия лабиринтного уплотнения на его гидравлические характеристики

Abstract

Labyrinth seals are most often used to seal the cavities of gas turbine engines. During operation, the rotor may cut into the stator and wear out the coating and honeycomb. Existing analytical models, for example, the Martin and Neumann equations [1], do not take into account such factors as the magnitude and shape of stator wear, the relative position of the comb relative to the wear groove. CFD methods, on the contrary, have the ability to take into account a large number of factors, but they require significant computational costs.