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http://dx.doi.org/10.5293/KFMA.2007.10.3.009

Effect of Surface Roughness on Performance of Axial Compressor Blade  

Samad, Abdus (인하대학교 대학원 기계공학과)
Kim, Kwang-Yong (인하대학교 기계공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.10, no.3, 2007 , pp. 9-16 More about this Journal
Abstract
Deterioration of surface of turbomachinery blades occurs in course of time due to many factors and hence reduces the performance of the machine. In this paper, the effects of surface roughness of transonic axial compressor blade on performance are studied considering a reference blade and a shape distorted (optimized) blade. Optimal blade is designed considering sweep and lean. Baldwin-Lomax turbulence model is used for flow field analysis and Cebeci-Smith roughness model is formulated for roughness modeling. It is found that, as the surface roughness increases, adiabatic efficiency, total temperature ratio and total pressure ratio decrease while Mach number increases. Performance deterioration is more severe in case of distorted blade as compared to reference blade.
Keywords
Surface Roughness; Axial Compressor; Blade; Navier-Stokes Analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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