Open AccessStudy on the influence of hot streak and swirl on the film cooling performance of the leading edge of the guide vane
Author(s) -
CHENXiao,
Weilin Yi
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1081/1/012011
Subject(s) - streak , leading edge , combustor , enhanced data rates for gsm evolution , materials science , mechanics , flow (mathematics) , gas turbines , turbine , blade (archaeology) , steam turbine , mechanical engineering , optics , engineering , combustion , composite material , physics , chemistry , telecommunications , organic chemistry
In order to study the impacts of the non-uniform conditions of the combustor exit on the flow loss of the turbine guide blade and the cooling performance of the leading edge film, a hot streak and swirl distribution generation program has been developed to implement the parameterization specification of the non-uniform flow state. In addition, the calculation of this paper is based on GE-E3, the numerical simulation analysis is conducted for the swirl/hot streak of the positive blade on the leading edge of the film cooling guide blade. The results showed that the presence of hot streak increased the non-uniformity of vane heat load and had no effect on vane wall pressure distribution. The presence of swirl changes the pressure distribution on the vane wall, affects the migration form of hot streak in the passage, and reduces the cooling effect of the film cooling on the vane. The temperature at the outlet section of the guide vane is uniform.