Abstract

A gas turbine engine service life is mainly determined by the lifespan of high-pressure turbine blades. Computational simulations are becoming increasingly important for safe design and optimized blade profile for achieving maximum efficiency. The impact of high-pressure high temperature gas on a rotor blade in motion can result various failure mechanism along the blade profile. A detailed computational analysis has been presented in this paper to investigate the effects of turbine speed and inlet conditions on the 1st stage of an axial flow high pressure gas turbine. A Finite element simulation software was used to assess the thermal hydraulics of high energy fluid flow under a variety of mass flow and temperature conditions. The developed wall shear stress under such a compressible flow domain was found to be dependent on blade speed considered in this analysis.

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