Effects of “S”-Type Bowed Guide Vanes on Unsteady Flow in 1.5-Stage Axial Compressors
نویسندگان
چکیده
In axial compressors, the unsteady flow caused by interaction between dynamic and static cascades will make moving vanes subject to periodic forces increase risk of high-cycle fatigue fractures. this study, an “S”-type bowed guide vane was designed a 1.5-stage compressor model established. For five with different bending coefficients, numerical simulation carried out under design conditions near-blockage conditions. The influence coefficient on pressure ratio efficiency is analyzed, aerodynamic exciting force analyzed using fast Fourier transform. study shows that can greatly reduce amplitude vanes. −10 mm tangential amplitudes at first-order blade-passing frequency 90.82% 90.39% conditions, respectively. Under condition, be reduced 85.84% 86.58%, This improve vibration safety vane.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13085071