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首页> 外文期刊>Research journal of applied science, engineering and technology >The Effect of Surface Roughness on Thermodynamic Performance Parameter of Axial Flow Compressor
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The Effect of Surface Roughness on Thermodynamic Performance Parameter of Axial Flow Compressor

机译：表面粗糙度对轴流压缩机热力学性能参数的影响

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摘要

In axial flow compressor, blade surface roughness is affected by many failure modes such as fouling, erosion, corrosion and foreign object damage. But with development of filter performance, particles with diameter larger than 2 μm cannot enter into compressor,so fouling is the most important influence factor which results in the variation of surface roughness. This study respectively discusses the effect of surface roughness on performance parameter when surface roughness is constant and linearly distributed. 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 results in the decrease of pressure ratio, mass flow and efficiency.
机译：在轴流压缩机中，叶片表面粗糙度受许多故障模式的影响，例如结垢，腐蚀，腐蚀和异物损坏。但是随着过滤器性能的发展，直径大于2μm的颗粒无法进入压缩机，因此结垢是导致表面粗糙度变化的最重要的影响因素。本研究分别讨论了当表面粗糙度恒定且呈线性分布时，表面粗糙度对性能参数的影响。最后，根据实验结果，采用逆向设计方法，将激光三角剖分传感器与压缩机结垢试验台相结合，对结垢的压缩机进行了重构，然后将重构后的实体模型导入ANSYS CFX，以模拟流场。结果表明，表面粗糙度的增加导致压力比，质量流量和效率的降低。

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