TY - JOUR
AU - Que, Xiaobin
AB - Upstream blade wake turbulence fluctuation may affect compressor blade forced response caused by wake sweeping. In order to investigate the effect of wake turbulence fluctuation and predict the blade vibration more accurately, this paper proposes a forced response calculation model that considers the excitation of upstream blade wake turbulence fluctuation on the basis of the conventional forced response calculation method. Using a three-stage axial compressor as the research subject, a quasi-three-dimensional large eddy simulation is conducted using the blade profile at 77.8% of the span of the inlet guide vane. Analysis of the flow field around the inlet guide vane indicates noticeable total pressure fluctuation in the wake of the inlet guide vane. The influence of upstream wake turbulence fluctuation is incorporated into the forced response calculation model in the form of total pressure fluctuation to obtain more accurate excitation forces. Specifically, the relationship between the amplitude of total pressure fluctuation and total pressure loss is established according to the results of large eddy simulation, and different formulas are set according to the position zoning of suction surface and pressure surface. Computational results show that, if only wake sweeping is considered, the maximum amplitude is 27% lower than the test result. However, when wake sweeping and wake fluctuation are considered, the calculated result better matches the test result, with only a 6% reduction compared to the test result. The results confirm the effectiveness of the proposed model.
TI - Forced Response Calculation of Axial Compressor Rotor Blade Considering Wake Sweeping and Wake Fluctuation
JF - Journal of Thermal Science
DO - 10.1007/s11630-025-2124-3
DA - 2025-07-01
UR - https://www.deepdyve.com/lp/springer-journals/forced-response-calculation-of-axial-compressor-rotor-blade-2H4zRh03GR
SP - 1241
EP - 1256
VL - 34
IS - 4
DP - DeepDyve
ER -