The effect of blade profile parameter on thermodynamic performance parameter of axial flow compressor
by Huadong Yang; Hong Xu
International Journal of Computer Applications in Technology (IJCAT), Vol. 50, No. 3/4, 2014

Abstract: In axial flow compressor, blade profile parameter is affected by many failure modes such as fouling, erosion, corrosion and foreign object damage. In these failure modes, fouling is the most important influence factor which results in the variation of blade profile parameter. This paper, respectively, discusses the effect of surface roughness on performance parameter when surface roughness is constant and linearly distributed. At the same time, the effect of variation of blade tip clearance on the compressor performance is discussed. Finally, based on experiment result, reverse design method is applied to reconstruct the fouled compressor by combining laser triangulation sensor with compressor fouling test rig, and then reconstructed solid model is imported into ANSYS CFX to simulate flow field. Result shows that the increase of surface roughness and tip clearance results in the decrease of thermodynamic parameters, such as pressure ratio, mass flow and efficiency, so it is not reasonable to evaluate the fouling level based on variation of thermodynamic parameters.

Online publication date: Sat, 07-Feb-2015

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